28150885

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 40043520

約数和(自身を除く): 11892635

約数列:

[1, 5, 7, 35, 47, 109, 157, 235, 329, 545, 763, 785, 1099, 1645, 3815, 5123, 5495, 7379, 17113, 25615, 35861, 36895, 51653, 85565, 119791, 179305, 258265, 598955, 804311, 4021555, 5630177, 28150885]

約数ペア:

[(1, 28150885), (5, 5630177), (7, 4021555), (35, 804311), (47, 598955), (109, 258265), (157, 179305), (235, 119791), (329, 85565), (545, 51653), (763, 36895), (785, 35861), (1099, 25615), (1645, 17113), (3815, 7379), (5123, 5495)]