320131721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:753

約数の個数: 32

約数和(自身を含む): 405140736

約数和(自身を除く): 85009015

約数列:

[1, 7, 13, 61, 91, 101, 427, 571, 707, 793, 1313, 3997, 5551, 6161, 7423, 9191, 34831, 43127, 51961, 57671, 80093, 243817, 403697, 452803, 560651, 749723, 3169621, 3517931, 5248061, 24625517, 45733103, 320131721]

約数ペア:

[(1, 320131721), (7, 45733103), (13, 24625517), (61, 5248061), (91, 3517931), (101, 3169621), (427, 749723), (571, 560651), (707, 452803), (793, 403697), (1313, 243817), (3997, 80093), (5551, 57671), (6161, 51961), (7423, 43127), (9191, 34831)]