31241080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{823}}^1$

素因数の和:920

約数の個数: 64

約数和(自身を含む): 76829760

約数和(自身を除く): 45588680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 823, 949, 1460, 1646, 1898, 2920, 3292, 3796, 4115, 4745, 6584, 7592, 8230, 9490, 10699, 16460, 18980, 21398, 32920, 37960, 42796, 53495, 60079, 85592, 106990, 120158, 213980, 240316, 300395, 427960, 480632, 600790, 781027, 1201580, 1562054, 2403160, 3124108, 3905135, 6248216, 7810270, 15620540, 31241080]

約数ペア:

[(1, 31241080), (2, 15620540), (4, 7810270), (5, 6248216), (8, 3905135), (10, 3124108), (13, 2403160), (20, 1562054), (26, 1201580), (40, 781027), (52, 600790), (65, 480632), (73, 427960), (104, 300395), (130, 240316), (146, 213980), (260, 120158), (292, 106990), (365, 85592), (520, 60079), (584, 53495), (730, 42796), (823, 37960), (949, 32920), (1460, 21398), (1646, 18980), (1898, 16460), (2920, 10699), (3292, 9490), (3796, 8230), (4115, 7592), (4745, 6584)]