1268740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 2983680

約数和(自身を除く): 1714940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 79, 110, 146, 158, 220, 292, 316, 365, 395, 730, 790, 803, 869, 1460, 1580, 1606, 1738, 3212, 3476, 4015, 4345, 5767, 8030, 8690, 11534, 16060, 17380, 23068, 28835, 57670, 63437, 115340, 126874, 253748, 317185, 634370, 1268740]

約数ペア:

[(1, 1268740), (2, 634370), (4, 317185), (5, 253748), (10, 126874), (11, 115340), (20, 63437), (22, 57670), (44, 28835), (55, 23068), (73, 17380), (79, 16060), (110, 11534), (146, 8690), (158, 8030), (220, 5767), (292, 4345), (316, 4015), (365, 3476), (395, 3212), (730, 1738), (790, 1606), (803, 1580), (869, 1460)]