18581576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 64

約数和(自身を含む): 39841200

約数和(自身を除く): 21259624

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 61, 101, 104, 116, 122, 202, 232, 244, 377, 404, 488, 754, 793, 808, 1313, 1508, 1586, 1769, 2626, 2929, 3016, 3172, 3538, 5252, 5858, 6161, 6344, 7076, 10504, 11716, 12322, 14152, 22997, 23432, 24644, 38077, 45994, 49288, 76154, 80093, 91988, 152308, 160186, 178669, 183976, 304616, 320372, 357338, 640744, 714676, 1429352, 2322697, 4645394, 9290788, 18581576]

約数ペア:

[(1, 18581576), (2, 9290788), (4, 4645394), (8, 2322697), (13, 1429352), (26, 714676), (29, 640744), (52, 357338), (58, 320372), (61, 304616), (101, 183976), (104, 178669), (116, 160186), (122, 152308), (202, 91988), (232, 80093), (244, 76154), (377, 49288), (404, 45994), (488, 38077), (754, 24644), (793, 23432), (808, 22997), (1313, 14152), (1508, 12322), (1586, 11716), (1769, 10504), (2626, 7076), (2929, 6344), (3016, 6161), (3172, 5858), (3538, 5252)]