20041740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 65415168

約数和(自身を除く): 45373428

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 47, 60, 69, 90, 92, 94, 103, 115, 138, 141, 180, 188, 206, 207, 230, 235, 276, 282, 309, 345, 412, 414, 423, 460, 470, 515, 564, 618, 690, 705, 828, 846, 927, 940, 1030, 1035, 1081, 1236, 1380, 1410, 1545, 1692, 1854, 2060, 2070, 2115, 2162, 2369, 2820, 3090, 3243, 3708, 4140, 4230, 4324, 4635, 4738, 4841, 5405, 6180, 6486, 7107, 8460, 9270, 9476, 9682, 9729, 10810, 11845, 12972, 14214, 14523, 16215, 18540, 19364, 19458, 21321, 21620, 23690, 24205, 28428, 29046, 32430, 35535, 38916, 42642, 43569, 47380, 48410, 48645, 58092, 64860, 71070, 72615, 85284, 87138, 96820, 97290, 106605, 111343, 142140, 145230, 174276, 194580, 213210, 217845, 222686, 290460, 334029, 426420, 435690, 445372, 556715, 668058, 871380, 1002087, 1113430, 1336116, 1670145, 2004174, 2226860, 3340290, 4008348, 5010435, 6680580, 10020870, 20041740]

約数ペア:

[(1, 20041740), (2, 10020870), (3, 6680580), (4, 5010435), (5, 4008348), (6, 3340290), (9, 2226860), (10, 2004174), (12, 1670145), (15, 1336116), (18, 1113430), (20, 1002087), (23, 871380), (30, 668058), (36, 556715), (45, 445372), (46, 435690), (47, 426420), (60, 334029), (69, 290460), (90, 222686), (92, 217845), (94, 213210), (103, 194580), (115, 174276), (138, 145230), (141, 142140), (180, 111343), (188, 106605), (206, 97290), (207, 96820), (230, 87138), (235, 85284), (276, 72615), (282, 71070), (309, 64860), (345, 58092), (412, 48645), (414, 48410), (423, 47380), (460, 43569), (470, 42642), (515, 38916), (564, 35535), (618, 32430), (690, 29046), (705, 28428), (828, 24205), (846, 23690), (927, 21620), (940, 21321), (1030, 19458), (1035, 19364), (1081, 18540), (1236, 16215), (1380, 14523), (1410, 14214), (1545, 12972), (1692, 11845), (1854, 10810), (2060, 9729), (2070, 9682), (2115, 9476), (2162, 9270), (2369, 8460), (2820, 7107), (3090, 6486), (3243, 6180), (3708, 5405), (4140, 4841), (4230, 4738), (4324, 4635)]