642363400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:133

約数の個数: 288

約数和(自身を含む): 1904878080

約数和(自身を除く): 1262514680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 25, 28, 31, 35, 38, 40, 41, 50, 56, 62, 70, 76, 82, 95, 100, 124, 133, 140, 152, 155, 164, 175, 190, 200, 205, 217, 248, 266, 280, 287, 310, 328, 350, 361, 380, 410, 434, 475, 532, 574, 589, 620, 665, 700, 722, 760, 775, 779, 820, 868, 950, 1025, 1064, 1085, 1148, 1178, 1240, 1271, 1330, 1400, 1435, 1444, 1550, 1558, 1640, 1736, 1805, 1900, 2050, 2170, 2296, 2356, 2527, 2542, 2660, 2870, 2888, 2945, 3100, 3116, 3325, 3610, 3800, 3895, 4100, 4123, 4340, 4712, 5054, 5084, 5320, 5425, 5453, 5740, 5890, 6200, 6232, 6355, 6650, 7175, 7220, 7790, 8200, 8246, 8680, 8897, 9025, 10108, 10168, 10850, 10906, 11191, 11480, 11780, 12635, 12710, 13300, 14350, 14440, 14725, 14801, 15580, 16492, 17794, 18050, 19475, 20216, 20615, 21700, 21812, 22382, 23560, 24149, 25270, 25420, 26600, 27265, 28700, 29450, 29602, 31160, 31775, 32984, 35588, 36100, 38950, 41230, 43400, 43624, 44485, 44764, 48298, 50540, 50840, 54530, 55955, 57400, 58900, 59204, 63175, 63550, 71176, 72200, 74005, 77900, 78337, 82460, 88970, 89528, 96596, 101080, 103075, 103607, 109060, 111910, 117800, 118408, 120745, 126350, 127100, 136325, 148010, 155800, 156674, 164920, 169043, 177940, 193192, 206150, 207214, 218120, 222425, 223820, 241490, 252700, 254200, 272650, 279775, 296020, 313348, 338086, 355880, 370025, 391685, 412300, 414428, 444850, 447640, 458831, 482980, 505400, 518035, 545300, 559550, 592040, 603725, 626696, 676172, 740050, 783370, 824600, 828856, 845215, 889700, 917662, 965960, 1036070, 1090600, 1119100, 1207450, 1352344, 1480100, 1566740, 1690430, 1779400, 1835324, 1958425, 2072140, 2238200, 2294155, 2414900, 2590175, 2960200, 3133480, 3211817, 3380860, 3670648, 3916850, 4144280, 4226075, 4588310, 4829800, 5180350, 6423634, 6761720, 7833700, 8452150, 9176620, 10360700, 11470775, 12847268, 15667400, 16059085, 16904300, 18353240, 20721400, 22941550, 25694536, 32118170, 33808600, 45883100, 64236340, 80295425, 91766200, 128472680, 160590850, 321181700, 642363400]

約数ペア:

[(1, 642363400), (2, 321181700), (4, 160590850), (5, 128472680), (7, 91766200), (8, 80295425), (10, 64236340), (14, 45883100), (19, 33808600), (20, 32118170), (25, 25694536), (28, 22941550), (31, 20721400), (35, 18353240), (38, 16904300), (40, 16059085), (41, 15667400), (50, 12847268), (56, 11470775), (62, 10360700), (70, 9176620), (76, 8452150), (82, 7833700), (95, 6761720), (100, 6423634), (124, 5180350), (133, 4829800), (140, 4588310), (152, 4226075), (155, 4144280), (164, 3916850), (175, 3670648), (190, 3380860), (200, 3211817), (205, 3133480), (217, 2960200), (248, 2590175), (266, 2414900), (280, 2294155), (287, 2238200), (310, 2072140), (328, 1958425), (350, 1835324), (361, 1779400), (380, 1690430), (410, 1566740), (434, 1480100), (475, 1352344), (532, 1207450), (574, 1119100), (589, 1090600), (620, 1036070), (665, 965960), (700, 917662), (722, 889700), (760, 845215), (775, 828856), (779, 824600), (820, 783370), (868, 740050), (950, 676172), (1025, 626696), (1064, 603725), (1085, 592040), (1148, 559550), (1178, 545300), (1240, 518035), (1271, 505400), (1330, 482980), (1400, 458831), (1435, 447640), (1444, 444850), (1550, 414428), (1558, 412300), (1640, 391685), (1736, 370025), (1805, 355880), (1900, 338086), (2050, 313348), (2170, 296020), (2296, 279775), (2356, 272650), (2527, 254200), (2542, 252700), (2660, 241490), (2870, 223820), (2888, 222425), (2945, 218120), (3100, 207214), (3116, 206150), (3325, 193192), (3610, 177940), (3800, 169043), (3895, 164920), (4100, 156674), (4123, 155800), (4340, 148010), (4712, 136325), (5054, 127100), (5084, 126350), (5320, 120745), (5425, 118408), (5453, 117800), (5740, 111910), (5890, 109060), (6200, 103607), (6232, 103075), (6355, 101080), (6650, 96596), (7175, 89528), (7220, 88970), (7790, 82460), (8200, 78337), (8246, 77900), (8680, 74005), (8897, 72200), (9025, 71176), (10108, 63550), (10168, 63175), (10850, 59204), (10906, 58900), (11191, 57400), (11480, 55955), (11780, 54530), (12635, 50840), (12710, 50540), (13300, 48298), (14350, 44764), (14440, 44485), (14725, 43624), (14801, 43400), (15580, 41230), (16492, 38950), (17794, 36100), (18050, 35588), (19475, 32984), (20216, 31775), (20615, 31160), (21700, 29602), (21812, 29450), (22382, 28700), (23560, 27265), (24149, 26600), (25270, 25420)]