8644660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 19095552

約数和(自身を除く): 10450892

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 191, 292, 310, 365, 382, 620, 730, 764, 955, 1460, 1910, 2263, 3820, 4526, 5921, 9052, 11315, 11842, 13943, 22630, 23684, 27886, 29605, 45260, 55772, 59210, 69715, 118420, 139430, 278860, 432233, 864466, 1728932, 2161165, 4322330, 8644660]

約数ペア:

[(1, 8644660), (2, 4322330), (4, 2161165), (5, 1728932), (10, 864466), (20, 432233), (31, 278860), (62, 139430), (73, 118420), (124, 69715), (146, 59210), (155, 55772), (191, 45260), (292, 29605), (310, 27886), (365, 23684), (382, 22630), (620, 13943), (730, 11842), (764, 11315), (955, 9052), (1460, 5921), (1910, 4526), (2263, 3820)]