399408420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{6656807}}^1$

素因数の和:6656819

約数の個数: 24

約数和(自身を含む): 1118343744

約数和(自身を除く): 718935324

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 6656807, 13313614, 19970421, 26627228, 33284035, 39940842, 66568070, 79881684, 99852105, 133136140, 199704210, 399408420]

約数ペア:

[(1, 399408420), (2, 199704210), (3, 133136140), (4, 99852105), (5, 79881684), (6, 66568070), (10, 39940842), (12, 33284035), (15, 26627228), (20, 19970421), (30, 13313614), (60, 6656807)]