289263325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{28711}}^1$

素因数の和:28765

約数の個数: 24

約数和(自身を含む): 398752256

約数和(自身を除く): 109488931

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 28711, 143555, 373243, 717775, 890041, 1866215, 4450205, 9331075, 11570533, 22251025, 57852665, 289263325]

約数ペア:

[(1, 289263325), (5, 57852665), (13, 22251025), (25, 11570533), (31, 9331075), (65, 4450205), (155, 1866215), (325, 890041), (403, 717775), (775, 373243), (2015, 143555), (10075, 28711)]