258763967

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:623

約数の個数: 32

約数和(自身を含む): 331568640

約数和(自身を除く): 72804673

約数列:

[1, 7, 11, 53, 77, 163, 371, 389, 583, 1141, 1793, 2723, 4081, 4279, 8639, 12551, 20617, 29953, 60473, 63407, 95029, 144319, 226787, 443849, 665203, 697477, 1587509, 3360571, 4882339, 23523997, 36966281, 258763967]

約数ペア:

[(1, 258763967), (7, 36966281), (11, 23523997), (53, 4882339), (77, 3360571), (163, 1587509), (371, 697477), (389, 665203), (583, 443849), (1141, 226787), (1793, 144319), (2723, 95029), (4081, 63407), (4279, 60473), (8639, 29953), (12551, 20617)]