1691988

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 4280640

約数和(自身を除く): 2588652

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 41, 57, 76, 82, 114, 123, 164, 181, 228, 246, 362, 492, 543, 724, 779, 1086, 1558, 2172, 2337, 3116, 3439, 4674, 6878, 7421, 9348, 10317, 13756, 14842, 20634, 22263, 29684, 41268, 44526, 89052, 140999, 281998, 422997, 563996, 845994, 1691988]

約数ペア:

[(1, 1691988), (2, 845994), (3, 563996), (4, 422997), (6, 281998), (12, 140999), (19, 89052), (38, 44526), (41, 41268), (57, 29684), (76, 22263), (82, 20634), (114, 14842), (123, 13756), (164, 10317), (181, 9348), (228, 7421), (246, 6878), (362, 4674), (492, 3439), (543, 3116), (724, 2337), (779, 2172), (1086, 1558)]