25351865

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:462

約数の個数: 48

約数和(自身を含む): 40383360

約数和(自身を除く): 15031495

約数列:

[1, 5, 7, 11, 23, 35, 49, 55, 77, 115, 161, 245, 253, 385, 409, 539, 805, 1127, 1265, 1771, 2045, 2695, 2863, 4499, 5635, 8855, 9407, 12397, 14315, 20041, 22495, 31493, 47035, 61985, 65849, 100205, 103477, 157465, 220451, 329245, 460943, 517385, 724339, 1102255, 2304715, 3621695, 5070373, 25351865]

約数ペア:

[(1, 25351865), (5, 5070373), (7, 3621695), (11, 2304715), (23, 1102255), (35, 724339), (49, 517385), (55, 460943), (77, 329245), (115, 220451), (161, 157465), (245, 103477), (253, 100205), (385, 65849), (409, 61985), (539, 47035), (805, 31493), (1127, 22495), (1265, 20041), (1771, 14315), (2045, 12397), (2695, 9407), (2863, 8855), (4499, 5635)]