20285160

素因数分解:

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

素因数の和:112

約数の個数: 256

約数和(自身を含む): 77414400

約数和(自身を除く): 57129240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 31, 35, 38, 40, 41, 42, 56, 57, 60, 62, 70, 76, 82, 84, 93, 95, 105, 114, 120, 123, 124, 133, 140, 152, 155, 164, 168, 186, 190, 205, 210, 217, 228, 246, 248, 266, 280, 285, 287, 310, 328, 372, 380, 399, 410, 420, 434, 456, 465, 492, 532, 570, 574, 589, 615, 620, 651, 665, 744, 760, 779, 798, 820, 840, 861, 868, 930, 984, 1064, 1085, 1140, 1148, 1178, 1230, 1240, 1271, 1302, 1330, 1435, 1558, 1596, 1640, 1722, 1736, 1767, 1860, 1995, 2170, 2280, 2296, 2337, 2356, 2460, 2542, 2604, 2660, 2870, 2945, 3116, 3192, 3255, 3444, 3534, 3720, 3813, 3895, 3990, 4123, 4305, 4340, 4674, 4712, 4920, 5084, 5208, 5320, 5453, 5740, 5890, 6232, 6355, 6510, 6888, 7068, 7626, 7790, 7980, 8246, 8610, 8680, 8835, 8897, 9348, 10168, 10906, 11480, 11685, 11780, 12369, 12710, 13020, 14136, 15252, 15580, 15960, 16359, 16492, 17220, 17670, 17794, 18696, 19065, 20615, 21812, 23370, 23560, 24149, 24738, 25420, 26040, 26691, 27265, 30504, 31160, 32718, 32984, 34440, 35340, 35588, 38130, 41230, 43624, 44485, 46740, 48298, 49476, 50840, 53382, 54530, 61845, 65436, 70680, 71176, 72447, 76260, 81795, 82460, 88970, 93480, 96596, 98952, 106764, 109060, 120745, 123690, 130872, 133455, 144894, 152520, 163590, 164920, 169043, 177940, 193192, 213528, 218120, 241490, 247380, 266910, 289788, 327180, 338086, 355880, 362235, 482980, 494760, 507129, 533820, 579576, 654360, 676172, 724470, 845215, 965960, 1014258, 1067640, 1352344, 1448940, 1690430, 2028516, 2535645, 2897880, 3380860, 4057032, 5071290, 6761720, 10142580, 20285160]

約数ペア:

[(1, 20285160), (2, 10142580), (3, 6761720), (4, 5071290), (5, 4057032), (6, 3380860), (7, 2897880), (8, 2535645), (10, 2028516), (12, 1690430), (14, 1448940), (15, 1352344), (19, 1067640), (20, 1014258), (21, 965960), (24, 845215), (28, 724470), (30, 676172), (31, 654360), (35, 579576), (38, 533820), (40, 507129), (41, 494760), (42, 482980), (56, 362235), (57, 355880), (60, 338086), (62, 327180), (70, 289788), (76, 266910), (82, 247380), (84, 241490), (93, 218120), (95, 213528), (105, 193192), (114, 177940), (120, 169043), (123, 164920), (124, 163590), (133, 152520), (140, 144894), (152, 133455), (155, 130872), (164, 123690), (168, 120745), (186, 109060), (190, 106764), (205, 98952), (210, 96596), (217, 93480), (228, 88970), (246, 82460), (248, 81795), (266, 76260), (280, 72447), (285, 71176), (287, 70680), (310, 65436), (328, 61845), (372, 54530), (380, 53382), (399, 50840), (410, 49476), (420, 48298), (434, 46740), (456, 44485), (465, 43624), (492, 41230), (532, 38130), (570, 35588), (574, 35340), (589, 34440), (615, 32984), (620, 32718), (651, 31160), (665, 30504), (744, 27265), (760, 26691), (779, 26040), (798, 25420), (820, 24738), (840, 24149), (861, 23560), (868, 23370), (930, 21812), (984, 20615), (1064, 19065), (1085, 18696), (1140, 17794), (1148, 17670), (1178, 17220), (1230, 16492), (1240, 16359), (1271, 15960), (1302, 15580), (1330, 15252), (1435, 14136), (1558, 13020), (1596, 12710), (1640, 12369), (1722, 11780), (1736, 11685), (1767, 11480), (1860, 10906), (1995, 10168), (2170, 9348), (2280, 8897), (2296, 8835), (2337, 8680), (2356, 8610), (2460, 8246), (2542, 7980), (2604, 7790), (2660, 7626), (2870, 7068), (2945, 6888), (3116, 6510), (3192, 6355), (3255, 6232), (3444, 5890), (3534, 5740), (3720, 5453), (3813, 5320), (3895, 5208), (3990, 5084), (4123, 4920), (4305, 4712), (4340, 4674)]