31033240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:964

約数の個数: 64

約数和(自身を含む): 80481600

約数和(自身を除く): 49448360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 685, 809, 959, 1096, 1370, 1618, 1918, 2740, 3236, 3836, 4045, 4795, 5480, 5663, 6472, 7672, 8090, 9590, 11326, 16180, 19180, 22652, 28315, 32360, 38360, 45304, 56630, 110833, 113260, 221666, 226520, 443332, 554165, 775831, 886664, 1108330, 1551662, 2216660, 3103324, 3879155, 4433320, 6206648, 7758310, 15516620, 31033240]

約数ペア:

[(1, 31033240), (2, 15516620), (4, 7758310), (5, 6206648), (7, 4433320), (8, 3879155), (10, 3103324), (14, 2216660), (20, 1551662), (28, 1108330), (35, 886664), (40, 775831), (56, 554165), (70, 443332), (137, 226520), (140, 221666), (274, 113260), (280, 110833), (548, 56630), (685, 45304), (809, 38360), (959, 32360), (1096, 28315), (1370, 22652), (1618, 19180), (1918, 16180), (2740, 11326), (3236, 9590), (3836, 8090), (4045, 7672), (4795, 6472), (5480, 5663)]