279488260

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{89009}}^1$

素因数の和:89175

約数の個数: 24

約数和(自身を含む): 590670360

約数和(自身を除く): 311182100

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 89009, 178018, 356036, 445045, 890090, 1780180, 13974413, 27948826, 55897652, 69872065, 139744130, 279488260]

約数ペア:

[(1, 279488260), (2, 139744130), (4, 69872065), (5, 55897652), (10, 27948826), (20, 13974413), (157, 1780180), (314, 890090), (628, 445045), (785, 356036), (1570, 178018), (3140, 89009)]