890999529

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 1473085440

約数和(自身を除く): 582085911

約数列:

[1, 3, 7, 17, 21, 51, 73, 119, 179, 191, 219, 357, 511, 537, 573, 1241, 1253, 1337, 1533, 3043, 3247, 3723, 3759, 4011, 8687, 9129, 9741, 13067, 13943, 21301, 22729, 26061, 34189, 39201, 41829, 63903, 68187, 91469, 97601, 102567, 222139, 237031, 239323, 274407, 292803, 581213, 666417, 711093, 717969, 1554973, 1659217, 1743639, 2495797, 4068491, 4664919, 4977651, 7487391, 12205473, 17470579, 42428549, 52411737, 127285647, 296999843, 890999529]

約数ペア:

[(1, 890999529), (3, 296999843), (7, 127285647), (17, 52411737), (21, 42428549), (51, 17470579), (73, 12205473), (119, 7487391), (179, 4977651), (191, 4664919), (219, 4068491), (357, 2495797), (511, 1743639), (537, 1659217), (573, 1554973), (1241, 717969), (1253, 711093), (1337, 666417), (1533, 581213), (3043, 292803), (3247, 274407), (3723, 239323), (3759, 237031), (4011, 222139), (8687, 102567), (9129, 97601), (9741, 91469), (13067, 68187), (13943, 63903), (21301, 41829), (22729, 39201), (26061, 34189)]