54786440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 126904320

約数和(自身を除く): 72117880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 101, 142, 191, 202, 284, 355, 382, 404, 505, 568, 710, 764, 808, 955, 1010, 1420, 1528, 1910, 2020, 2840, 3820, 4040, 7171, 7640, 13561, 14342, 19291, 27122, 28684, 35855, 38582, 54244, 57368, 67805, 71710, 77164, 96455, 108488, 135610, 143420, 154328, 192910, 271220, 286840, 385820, 542440, 771640, 1369661, 2739322, 5478644, 6848305, 10957288, 13696610, 27393220, 54786440]

約数ペア:

[(1, 54786440), (2, 27393220), (4, 13696610), (5, 10957288), (8, 6848305), (10, 5478644), (20, 2739322), (40, 1369661), (71, 771640), (101, 542440), (142, 385820), (191, 286840), (202, 271220), (284, 192910), (355, 154328), (382, 143420), (404, 135610), (505, 108488), (568, 96455), (710, 77164), (764, 71710), (808, 67805), (955, 57368), (1010, 54244), (1420, 38582), (1528, 35855), (1910, 28684), (2020, 27122), (2840, 19291), (3820, 14342), (4040, 13561), (7171, 7640)]