129660400

素因数分解:

$2^4\times 5^2\times {\mathrm{324151}}^1$

素因数の和:324169

約数の個数: 30

約数和(自身を含む): 311510072

約数和(自身を除く): 181849672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 324151, 648302, 1296604, 1620755, 2593208, 3241510, 5186416, 6483020, 8103775, 12966040, 16207550, 25932080, 32415100, 64830200, 129660400]

約数ペア:

[(1, 129660400), (2, 64830200), (4, 32415100), (5, 25932080), (8, 16207550), (10, 12966040), (16, 8103775), (20, 6483020), (25, 5186416), (40, 3241510), (50, 2593208), (80, 1620755), (100, 1296604), (200, 648302), (400, 324151)]