20101020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 59222016

約数和(自身を除く): 39120996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 101, 107, 124, 155, 186, 202, 214, 303, 310, 321, 372, 404, 428, 465, 505, 535, 606, 620, 642, 930, 1010, 1070, 1212, 1284, 1515, 1605, 1860, 2020, 2140, 3030, 3131, 3210, 3317, 6060, 6262, 6420, 6634, 9393, 9951, 10807, 12524, 13268, 15655, 16585, 18786, 19902, 21614, 31310, 32421, 33170, 37572, 39804, 43228, 46965, 49755, 54035, 62620, 64842, 66340, 93930, 99510, 108070, 129684, 162105, 187860, 199020, 216140, 324210, 335017, 648420, 670034, 1005051, 1340068, 1675085, 2010102, 3350170, 4020204, 5025255, 6700340, 10050510, 20101020]

約数ペア:

[(1, 20101020), (2, 10050510), (3, 6700340), (4, 5025255), (5, 4020204), (6, 3350170), (10, 2010102), (12, 1675085), (15, 1340068), (20, 1005051), (30, 670034), (31, 648420), (60, 335017), (62, 324210), (93, 216140), (101, 199020), (107, 187860), (124, 162105), (155, 129684), (186, 108070), (202, 99510), (214, 93930), (303, 66340), (310, 64842), (321, 62620), (372, 54035), (404, 49755), (428, 46965), (465, 43228), (505, 39804), (535, 37572), (606, 33170), (620, 32421), (642, 31310), (930, 21614), (1010, 19902), (1070, 18786), (1212, 16585), (1284, 15655), (1515, 13268), (1605, 12524), (1860, 10807), (2020, 9951), (2140, 9393), (3030, 6634), (3131, 6420), (3210, 6262), (3317, 6060)]