66808240

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19421}}^1$

素因数の和:19477

約数の個数: 40

約数和(自身を含む): 158949648

約数和(自身を除く): 92141408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19421, 38842, 77684, 97105, 155368, 194210, 310736, 388420, 776840, 835103, 1553680, 1670206, 3340412, 4175515, 6680824, 8351030, 13361648, 16702060, 33404120, 66808240]

約数ペア:

[(1, 66808240), (2, 33404120), (4, 16702060), (5, 13361648), (8, 8351030), (10, 6680824), (16, 4175515), (20, 3340412), (40, 1670206), (43, 1553680), (80, 835103), (86, 776840), (172, 388420), (215, 310736), (344, 194210), (430, 155368), (688, 97105), (860, 77684), (1720, 38842), (3440, 19421)]