31303720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{111799}}^1$

素因数の和:111817

約数の個数: 32

約数和(自身を含む): 80496000

約数和(自身を除く): 49192280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 111799, 223598, 447196, 558995, 782593, 894392, 1117990, 1565186, 2235980, 3130372, 3912965, 4471960, 6260744, 7825930, 15651860, 31303720]

約数ペア:

[(1, 31303720), (2, 15651860), (4, 7825930), (5, 6260744), (7, 4471960), (8, 3912965), (10, 3130372), (14, 2235980), (20, 1565186), (28, 1117990), (35, 894392), (40, 782593), (56, 558995), (70, 447196), (140, 223598), (280, 111799)]