15885320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 39571200

約数和(自身を除く): 23685880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 457, 632, 790, 869, 914, 1580, 1738, 1828, 2285, 3160, 3476, 3656, 4345, 4570, 5027, 6952, 8690, 9140, 10054, 17380, 18280, 20108, 25135, 34760, 36103, 40216, 50270, 72206, 100540, 144412, 180515, 201080, 288824, 361030, 397133, 722060, 794266, 1444120, 1588532, 1985665, 3177064, 3971330, 7942660, 15885320]

約数ペア:

[(1, 15885320), (2, 7942660), (4, 3971330), (5, 3177064), (8, 1985665), (10, 1588532), (11, 1444120), (20, 794266), (22, 722060), (40, 397133), (44, 361030), (55, 288824), (79, 201080), (88, 180515), (110, 144412), (158, 100540), (220, 72206), (316, 50270), (395, 40216), (440, 36103), (457, 34760), (632, 25135), (790, 20108), (869, 18280), (914, 17380), (1580, 10054), (1738, 9140), (1828, 8690), (2285, 6952), (3160, 5027), (3476, 4570), (3656, 4345)]