28425145

素因数分解:

$5^1\times 7^2\times {\mathrm{181}}^1\times {\mathrm{641}}^1$

素因数の和:841

約数の個数: 24

約数和(自身を含む): 39960648

約数和(自身を除く): 11535503

約数列:

[1, 5, 7, 35, 49, 181, 245, 641, 905, 1267, 3205, 4487, 6335, 8869, 22435, 31409, 44345, 116021, 157045, 580105, 812147, 4060735, 5685029, 28425145]

約数ペア:

[(1, 28425145), (5, 5685029), (7, 4060735), (35, 812147), (49, 580105), (181, 157045), (245, 116021), (641, 44345), (905, 31409), (1267, 22435), (3205, 8869), (4487, 6335)]