39985988

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 83411328

約数和(自身を除く): 43425340

約数列:

[1, 2, 4, 7, 14, 28, 41, 61, 82, 122, 164, 244, 287, 427, 571, 574, 854, 1142, 1148, 1708, 2284, 2501, 3997, 5002, 7994, 10004, 15988, 17507, 23411, 34831, 35014, 46822, 69662, 70028, 93644, 139324, 163877, 243817, 327754, 487634, 655508, 975268, 1428071, 2856142, 5712284, 9996497, 19992994, 39985988]

約数ペア:

[(1, 39985988), (2, 19992994), (4, 9996497), (7, 5712284), (14, 2856142), (28, 1428071), (41, 975268), (61, 655508), (82, 487634), (122, 327754), (164, 243817), (244, 163877), (287, 139324), (427, 93644), (571, 70028), (574, 69662), (854, 46822), (1142, 35014), (1148, 34831), (1708, 23411), (2284, 17507), (2501, 15988), (3997, 10004), (5002, 7994)]