15638540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{457}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 34624800

約数和(自身を除く): 18986260

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 457, 580, 590, 914, 1180, 1711, 1828, 2285, 3422, 4570, 6844, 8555, 9140, 13253, 17110, 26506, 26963, 34220, 53012, 53926, 66265, 107852, 132530, 134815, 265060, 269630, 539260, 781927, 1563854, 3127708, 3909635, 7819270, 15638540]

約数ペア:

[(1, 15638540), (2, 7819270), (4, 3909635), (5, 3127708), (10, 1563854), (20, 781927), (29, 539260), (58, 269630), (59, 265060), (116, 134815), (118, 132530), (145, 107852), (236, 66265), (290, 53926), (295, 53012), (457, 34220), (580, 26963), (590, 26506), (914, 17110), (1180, 13253), (1711, 9140), (1828, 8555), (2285, 6844), (3422, 4570)]