31695280

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2659}}^1$

素因数の和:2821

約数の個数: 40

約数和(自身を含む): 74214000

約数和(自身を除く): 42518720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2659, 2980, 5318, 5960, 10636, 11920, 13295, 21272, 26590, 42544, 53180, 106360, 212720, 396191, 792382, 1584764, 1980955, 3169528, 3961910, 6339056, 7923820, 15847640, 31695280]

約数ペア:

[(1, 31695280), (2, 15847640), (4, 7923820), (5, 6339056), (8, 3961910), (10, 3169528), (16, 1980955), (20, 1584764), (40, 792382), (80, 396191), (149, 212720), (298, 106360), (596, 53180), (745, 42544), (1192, 26590), (1490, 21272), (2384, 13295), (2659, 11920), (2980, 10636), (5318, 5960)]