28708890

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{136709}}^1$

素因数の和:136726

約数の個数: 32

約数和(自身を含む): 78744960

約数和(自身を除く): 50036070

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 136709, 273418, 410127, 683545, 820254, 956963, 1367090, 1913926, 2050635, 2870889, 4101270, 4784815, 5741778, 9569630, 14354445, 28708890]

約数ペア:

[(1, 28708890), (2, 14354445), (3, 9569630), (5, 5741778), (6, 4784815), (7, 4101270), (10, 2870889), (14, 2050635), (15, 1913926), (21, 1367090), (30, 956963), (35, 820254), (42, 683545), (70, 410127), (105, 273418), (210, 136709)]