890409464

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{20411}}^1$

素因数の和:20484

約数の個数: 64

約数和(自身を含む): 2057529600

約数和(自身を除く): 1167120136

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 41, 56, 76, 82, 133, 152, 164, 266, 287, 328, 532, 574, 779, 1064, 1148, 1558, 2296, 3116, 5453, 6232, 10906, 20411, 21812, 40822, 43624, 81644, 142877, 163288, 285754, 387809, 571508, 775618, 836851, 1143016, 1551236, 1673702, 2714663, 3102472, 3347404, 5429326, 5857957, 6694808, 10858652, 11715914, 15900169, 21717304, 23431828, 31800338, 46863656, 63600676, 111301183, 127201352, 222602366, 445204732, 890409464]

約数ペア:

[(1, 890409464), (2, 445204732), (4, 222602366), (7, 127201352), (8, 111301183), (14, 63600676), (19, 46863656), (28, 31800338), (38, 23431828), (41, 21717304), (56, 15900169), (76, 11715914), (82, 10858652), (133, 6694808), (152, 5857957), (164, 5429326), (266, 3347404), (287, 3102472), (328, 2714663), (532, 1673702), (574, 1551236), (779, 1143016), (1064, 836851), (1148, 775618), (1558, 571508), (2296, 387809), (3116, 285754), (5453, 163288), (6232, 142877), (10906, 81644), (20411, 43624), (21812, 40822)]