171789580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{937}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 368746560

約数和(自身を除く): 196956980

約数列:

[1, 2, 4, 5, 10, 20, 89, 103, 178, 206, 356, 412, 445, 515, 890, 937, 1030, 1780, 1874, 2060, 3748, 4685, 9167, 9370, 18334, 18740, 36668, 45835, 83393, 91670, 96511, 166786, 183340, 193022, 333572, 386044, 416965, 482555, 833930, 965110, 1667860, 1930220, 8589479, 17178958, 34357916, 42947395, 85894790, 171789580]

約数ペア:

[(1, 171789580), (2, 85894790), (4, 42947395), (5, 34357916), (10, 17178958), (20, 8589479), (89, 1930220), (103, 1667860), (178, 965110), (206, 833930), (356, 482555), (412, 416965), (445, 386044), (515, 333572), (890, 193022), (937, 183340), (1030, 166786), (1780, 96511), (1874, 91670), (2060, 83393), (3748, 45835), (4685, 36668), (9167, 18740), (9370, 18334)]