77689648

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{112921}}^1$

素因数の和:112972

約数の個数: 20

約数和(自身を含む): 154025608

約数和(自身を除く): 76335960

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 112921, 225842, 451684, 903368, 1806736, 4855603, 9711206, 19422412, 38844824, 77689648]

約数ペア:

[(1, 77689648), (2, 38844824), (4, 19422412), (8, 9711206), (16, 4855603), (43, 1806736), (86, 903368), (172, 451684), (344, 225842), (688, 112921)]