12665200

素因数分解:

$2^4\times 5^2\times {\mathrm{31663}}^1$

素因数の和:31681

約数の個数: 30

約数和(自身を含む): 30429104

約数和(自身を除く): 17763904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 31663, 63326, 126652, 158315, 253304, 316630, 506608, 633260, 791575, 1266520, 1583150, 2533040, 3166300, 6332600, 12665200]

約数ペア:

[(1, 12665200), (2, 6332600), (4, 3166300), (5, 2533040), (8, 1583150), (10, 1266520), (16, 791575), (20, 633260), (25, 506608), (40, 316630), (50, 253304), (80, 158315), (100, 126652), (200, 63326), (400, 31663)]