28031025

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 51478848

約数和(自身を除く): 23447823

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 61, 75, 165, 183, 275, 305, 557, 671, 825, 915, 1525, 1671, 2013, 2785, 3355, 4575, 6127, 8355, 10065, 13925, 16775, 18381, 30635, 33977, 41775, 50325, 91905, 101931, 153175, 169885, 373747, 459525, 509655, 849425, 1121241, 1868735, 2548275, 5606205, 9343675, 28031025]

約数ペア:

[(1, 28031025), (3, 9343675), (5, 5606205), (11, 2548275), (15, 1868735), (25, 1121241), (33, 849425), (55, 509655), (61, 459525), (75, 373747), (165, 169885), (183, 153175), (275, 101931), (305, 91905), (557, 50325), (671, 41775), (825, 33977), (915, 30635), (1525, 18381), (1671, 16775), (2013, 13925), (2785, 10065), (3355, 8355), (4575, 6127)]