31159280

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2843}}^1$

素因数の和:2993

約数の個数: 40

約数和(自身を含む): 72999792

約数和(自身を除く): 41840512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 2843, 5480, 5686, 10960, 11372, 14215, 22744, 28430, 45488, 56860, 113720, 227440, 389491, 778982, 1557964, 1947455, 3115928, 3894910, 6231856, 7789820, 15579640, 31159280]

約数ペア:

[(1, 31159280), (2, 15579640), (4, 7789820), (5, 6231856), (8, 3894910), (10, 3115928), (16, 1947455), (20, 1557964), (40, 778982), (80, 389491), (137, 227440), (274, 113720), (548, 56860), (685, 45488), (1096, 28430), (1370, 22744), (2192, 14215), (2740, 11372), (2843, 10960), (5480, 5686)]