77209840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:398

約数の個数: 80

約数和(自身を含む): 187416576

約数和(自身を除く): 110206736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 163, 191, 248, 310, 326, 382, 496, 620, 652, 764, 815, 955, 1240, 1304, 1528, 1630, 1910, 2480, 2608, 3056, 3260, 3820, 5053, 5921, 6520, 7640, 10106, 11842, 13040, 15280, 20212, 23684, 25265, 29605, 31133, 40424, 47368, 50530, 59210, 62266, 80848, 94736, 101060, 118420, 124532, 155665, 202120, 236840, 249064, 311330, 404240, 473680, 498128, 622660, 965123, 1245320, 1930246, 2490640, 3860492, 4825615, 7720984, 9651230, 15441968, 19302460, 38604920, 77209840]

約数ペア:

[(1, 77209840), (2, 38604920), (4, 19302460), (5, 15441968), (8, 9651230), (10, 7720984), (16, 4825615), (20, 3860492), (31, 2490640), (40, 1930246), (62, 1245320), (80, 965123), (124, 622660), (155, 498128), (163, 473680), (191, 404240), (248, 311330), (310, 249064), (326, 236840), (382, 202120), (496, 155665), (620, 124532), (652, 118420), (764, 101060), (815, 94736), (955, 80848), (1240, 62266), (1304, 59210), (1528, 50530), (1630, 47368), (1910, 40424), (2480, 31133), (2608, 29605), (3056, 25265), (3260, 23684), (3820, 20212), (5053, 15280), (5921, 13040), (6520, 11842), (7640, 10106)]