392000800

素因数分解:

$2^5\times 5^2\times {\mathrm{490001}}^1$

素因数の和:490021

約数の個数: 36

約数和(自身を含む): 956973906

約数和(自身を除く): 564973106

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 490001, 980002, 1960004, 2450005, 3920008, 4900010, 7840016, 9800020, 12250025, 15680032, 19600040, 24500050, 39200080, 49000100, 78400160, 98000200, 196000400, 392000800]

約数ペア:

[(1, 392000800), (2, 196000400), (4, 98000200), (5, 78400160), (8, 49000100), (10, 39200080), (16, 24500050), (20, 19600040), (25, 15680032), (32, 12250025), (40, 9800020), (50, 7840016), (80, 4900010), (100, 3920008), (160, 2450005), (200, 1960004), (400, 980002), (800, 490001)]