258806408

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{317}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 567820800

約数和(自身を除く): 309014392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 239, 244, 317, 427, 478, 488, 634, 854, 956, 1268, 1673, 1708, 1912, 2219, 2536, 3346, 3416, 4438, 6692, 8876, 13384, 14579, 17752, 19337, 29158, 38674, 58316, 75763, 77348, 102053, 116632, 135359, 151526, 154696, 204106, 270718, 303052, 408212, 530341, 541436, 606104, 816424, 1060682, 1082872, 2121364, 4242728, 4621543, 9243086, 18486172, 32350801, 36972344, 64701602, 129403204, 258806408]

約数ペア:

[(1, 258806408), (2, 129403204), (4, 64701602), (7, 36972344), (8, 32350801), (14, 18486172), (28, 9243086), (56, 4621543), (61, 4242728), (122, 2121364), (239, 1082872), (244, 1060682), (317, 816424), (427, 606104), (478, 541436), (488, 530341), (634, 408212), (854, 303052), (956, 270718), (1268, 204106), (1673, 154696), (1708, 151526), (1912, 135359), (2219, 116632), (2536, 102053), (3346, 77348), (3416, 75763), (4438, 58316), (6692, 38674), (8876, 29158), (13384, 19337), (14579, 17752)]