81374580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1$

素因数の和:199

約数の個数: 288

約数和(自身を含む): 311351040

約数和(自身を除く): 229976460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 29, 30, 34, 35, 36, 42, 45, 51, 58, 60, 63, 68, 70, 84, 85, 87, 90, 102, 105, 116, 119, 126, 131, 140, 145, 153, 170, 174, 180, 203, 204, 210, 238, 252, 255, 261, 262, 290, 306, 315, 340, 348, 357, 393, 406, 420, 435, 476, 493, 510, 522, 524, 580, 595, 609, 612, 630, 655, 714, 765, 786, 812, 870, 917, 986, 1015, 1020, 1044, 1071, 1179, 1190, 1218, 1260, 1305, 1310, 1428, 1479, 1530, 1572, 1740, 1785, 1827, 1834, 1965, 1972, 2030, 2142, 2227, 2358, 2380, 2436, 2465, 2610, 2620, 2751, 2958, 3045, 3060, 3451, 3570, 3654, 3668, 3799, 3930, 4060, 4284, 4437, 4454, 4585, 4716, 4930, 5220, 5355, 5502, 5895, 5916, 6090, 6681, 6902, 7140, 7308, 7395, 7598, 7860, 8253, 8874, 8908, 9135, 9170, 9860, 10353, 10710, 11004, 11135, 11397, 11790, 12180, 13362, 13755, 13804, 14790, 15196, 15589, 16506, 17255, 17748, 18270, 18340, 18995, 20043, 20706, 21420, 22185, 22270, 22794, 23580, 26593, 26724, 27510, 29580, 31059, 31178, 33012, 33405, 34191, 34510, 36540, 37990, 40086, 41265, 41412, 44370, 44540, 45588, 46767, 51765, 53186, 55020, 56985, 62118, 62356, 64583, 66810, 68382, 69020, 75980, 77945, 79779, 80172, 82530, 88740, 93534, 100215, 103530, 106372, 113970, 124236, 129166, 132965, 133620, 136764, 140301, 155295, 155890, 159558, 165060, 170955, 187068, 193749, 200430, 207060, 227940, 233835, 239337, 258332, 265930, 280602, 310590, 311780, 319116, 322915, 341910, 387498, 398895, 400860, 452081, 467670, 478674, 531860, 561204, 581247, 621180, 645830, 683820, 701505, 774996, 797790, 904162, 935340, 957348, 968745, 1162494, 1196685, 1291660, 1356243, 1403010, 1595580, 1808324, 1937490, 2260405, 2324988, 2393370, 2712486, 2806020, 2906235, 3874980, 4068729, 4520810, 4786740, 5424972, 5812470, 6781215, 8137458, 9041620, 11624940, 13562430, 16274916, 20343645, 27124860, 40687290, 81374580]

約数ペア:

[(1, 81374580), (2, 40687290), (3, 27124860), (4, 20343645), (5, 16274916), (6, 13562430), (7, 11624940), (9, 9041620), (10, 8137458), (12, 6781215), (14, 5812470), (15, 5424972), (17, 4786740), (18, 4520810), (20, 4068729), (21, 3874980), (28, 2906235), (29, 2806020), (30, 2712486), (34, 2393370), (35, 2324988), (36, 2260405), (42, 1937490), (45, 1808324), (51, 1595580), (58, 1403010), (60, 1356243), (63, 1291660), (68, 1196685), (70, 1162494), (84, 968745), (85, 957348), (87, 935340), (90, 904162), (102, 797790), (105, 774996), (116, 701505), (119, 683820), (126, 645830), (131, 621180), (140, 581247), (145, 561204), (153, 531860), (170, 478674), (174, 467670), (180, 452081), (203, 400860), (204, 398895), (210, 387498), (238, 341910), (252, 322915), (255, 319116), (261, 311780), (262, 310590), (290, 280602), (306, 265930), (315, 258332), (340, 239337), (348, 233835), (357, 227940), (393, 207060), (406, 200430), (420, 193749), (435, 187068), (476, 170955), (493, 165060), (510, 159558), (522, 155890), (524, 155295), (580, 140301), (595, 136764), (609, 133620), (612, 132965), (630, 129166), (655, 124236), (714, 113970), (765, 106372), (786, 103530), (812, 100215), (870, 93534), (917, 88740), (986, 82530), (1015, 80172), (1020, 79779), (1044, 77945), (1071, 75980), (1179, 69020), (1190, 68382), (1218, 66810), (1260, 64583), (1305, 62356), (1310, 62118), (1428, 56985), (1479, 55020), (1530, 53186), (1572, 51765), (1740, 46767), (1785, 45588), (1827, 44540), (1834, 44370), (1965, 41412), (1972, 41265), (2030, 40086), (2142, 37990), (2227, 36540), (2358, 34510), (2380, 34191), (2436, 33405), (2465, 33012), (2610, 31178), (2620, 31059), (2751, 29580), (2958, 27510), (3045, 26724), (3060, 26593), (3451, 23580), (3570, 22794), (3654, 22270), (3668, 22185), (3799, 21420), (3930, 20706), (4060, 20043), (4284, 18995), (4437, 18340), (4454, 18270), (4585, 17748), (4716, 17255), (4930, 16506), (5220, 15589), (5355, 15196), (5502, 14790), (5895, 13804), (5916, 13755), (6090, 13362), (6681, 12180), (6902, 11790), (7140, 11397), (7308, 11135), (7395, 11004), (7598, 10710), (7860, 10353), (8253, 9860), (8874, 9170), (8908, 9135)]