85870018420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{294499}}^1$

素因数の和:294808

約数の個数: 48

約数和(自身を含む): 184050720000

約数和(自身を除く): 98180701580

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 239, 244, 305, 478, 610, 956, 1195, 1220, 2390, 4780, 14579, 29158, 58316, 72895, 145790, 291580, 294499, 588998, 1177996, 1472495, 2944990, 5889980, 17964439, 35928878, 70385261, 71857756, 89822195, 140770522, 179644390, 281541044, 351926305, 359288780, 703852610, 1407705220, 4293500921, 8587001842, 17174003684, 21467504605, 42935009210, 85870018420]

約数ペア:

[(1, 85870018420), (2, 42935009210), (4, 21467504605), (5, 17174003684), (10, 8587001842), (20, 4293500921), (61, 1407705220), (122, 703852610), (239, 359288780), (244, 351926305), (305, 281541044), (478, 179644390), (610, 140770522), (956, 89822195), (1195, 71857756), (1220, 70385261), (2390, 35928878), (4780, 17964439), (14579, 5889980), (29158, 2944990), (58316, 1472495), (72895, 1177996), (145790, 588998), (291580, 294499)]