201788420

素因数分解:

$2^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{6067}}^1$

素因数の和:7739

約数の個数: 24

約数和(自身を含む): 424080384

約数和(自身を除く): 222291964

約数列:

[1, 2, 4, 5, 10, 20, 1663, 3326, 6067, 6652, 8315, 12134, 16630, 24268, 30335, 33260, 60670, 121340, 10089421, 20178842, 40357684, 50447105, 100894210, 201788420]

約数ペア:

[(1, 201788420), (2, 100894210), (4, 50447105), (5, 40357684), (10, 20178842), (20, 10089421), (1663, 121340), (3326, 60670), (6067, 33260), (6652, 30335), (8315, 24268), (12134, 16630)]