20129360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 53574696

約数和(自身を除く): 33445336

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 41, 68, 76, 80, 82, 85, 95, 136, 152, 164, 170, 190, 205, 272, 304, 323, 328, 340, 361, 380, 410, 646, 656, 680, 697, 722, 760, 779, 820, 1292, 1360, 1394, 1444, 1520, 1558, 1615, 1640, 1805, 2584, 2788, 2888, 3116, 3230, 3280, 3485, 3610, 3895, 5168, 5576, 5776, 6137, 6232, 6460, 6970, 7220, 7790, 11152, 12274, 12464, 12920, 13243, 13940, 14440, 14801, 15580, 24548, 25840, 26486, 27880, 28880, 29602, 30685, 31160, 49096, 52972, 55760, 59204, 61370, 62320, 66215, 74005, 98192, 105944, 118408, 122740, 132430, 148010, 211888, 236816, 245480, 251617, 264860, 296020, 490960, 503234, 529720, 592040, 1006468, 1059440, 1184080, 1258085, 2012936, 2516170, 4025872, 5032340, 10064680, 20129360]

約数ペア:

[(1, 20129360), (2, 10064680), (4, 5032340), (5, 4025872), (8, 2516170), (10, 2012936), (16, 1258085), (17, 1184080), (19, 1059440), (20, 1006468), (34, 592040), (38, 529720), (40, 503234), (41, 490960), (68, 296020), (76, 264860), (80, 251617), (82, 245480), (85, 236816), (95, 211888), (136, 148010), (152, 132430), (164, 122740), (170, 118408), (190, 105944), (205, 98192), (272, 74005), (304, 66215), (323, 62320), (328, 61370), (340, 59204), (361, 55760), (380, 52972), (410, 49096), (646, 31160), (656, 30685), (680, 29602), (697, 28880), (722, 27880), (760, 26486), (779, 25840), (820, 24548), (1292, 15580), (1360, 14801), (1394, 14440), (1444, 13940), (1520, 13243), (1558, 12920), (1615, 12464), (1640, 12274), (1805, 11152), (2584, 7790), (2788, 7220), (2888, 6970), (3116, 6460), (3230, 6232), (3280, 6137), (3485, 5776), (3610, 5576), (3895, 5168)]