254260985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 340070400

約数和(自身を除く): 85809415

約数列:

[1, 5, 11, 55, 89, 127, 409, 445, 635, 979, 1397, 2045, 4499, 4895, 6985, 11303, 22495, 36401, 51943, 56515, 124333, 182005, 259715, 400411, 571373, 621665, 2002055, 2856865, 4622927, 23114635, 50852197, 254260985]

約数ペア:

[(1, 254260985), (5, 50852197), (11, 23114635), (55, 4622927), (89, 2856865), (127, 2002055), (409, 621665), (445, 571373), (635, 400411), (979, 259715), (1397, 182005), (2045, 124333), (4499, 56515), (4895, 51943), (6985, 36401), (11303, 22495)]