71572880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{21821}}^1$

素因数の和:21875

約数の個数: 40

約数和(自身を含む): 170473464

約数和(自身を除く): 98900584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 21821, 43642, 87284, 109105, 174568, 218210, 349136, 436420, 872840, 894661, 1745680, 1789322, 3578644, 4473305, 7157288, 8946610, 14314576, 17893220, 35786440, 71572880]

約数ペア:

[(1, 71572880), (2, 35786440), (4, 17893220), (5, 14314576), (8, 8946610), (10, 7157288), (16, 4473305), (20, 3578644), (40, 1789322), (41, 1745680), (80, 894661), (82, 872840), (164, 436420), (205, 349136), (328, 218210), (410, 174568), (656, 109105), (820, 87284), (1640, 43642), (3280, 21821)]