263289325

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{617}}^1$

素因数の和:754

約数の個数: 36

約数和(自身を含む): 357603228

約数和(自身を除く): 94313903

約数列:

[1, 5, 13, 25, 65, 101, 169, 325, 505, 617, 845, 1313, 2525, 3085, 4225, 6565, 8021, 15425, 17069, 32825, 40105, 62317, 85345, 104273, 200525, 311585, 426725, 521365, 810121, 1557925, 2606825, 4050605, 10531573, 20253025, 52657865, 263289325]

約数ペア:

[(1, 263289325), (5, 52657865), (13, 20253025), (25, 10531573), (65, 4050605), (101, 2606825), (169, 1557925), (325, 810121), (505, 521365), (617, 426725), (845, 311585), (1313, 200525), (2525, 104273), (3085, 85345), (4225, 62317), (6565, 40105), (8021, 32825), (15425, 17069)]