256728771

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{449}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 417362400

約数和(自身を除く): 160633629

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 181, 243, 351, 449, 543, 1053, 1347, 1629, 2353, 3159, 4041, 4887, 5837, 7059, 12123, 14661, 17511, 21177, 36369, 43983, 52533, 63531, 81269, 109107, 157599, 190593, 243807, 472797, 571779, 731421, 1056497, 1418391, 2194263, 3169491, 6582789, 9508473, 19748367, 28525419, 85576257, 256728771]

約数ペア:

[(1, 256728771), (3, 85576257), (9, 28525419), (13, 19748367), (27, 9508473), (39, 6582789), (81, 3169491), (117, 2194263), (181, 1418391), (243, 1056497), (351, 731421), (449, 571779), (543, 472797), (1053, 243807), (1347, 190593), (1629, 157599), (2353, 109107), (3159, 81269), (4041, 63531), (4887, 52533), (5837, 43983), (7059, 36369), (12123, 21177), (14661, 17511)]