18756736

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 40147200

約数和(自身を除く): 21390464

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 116, 124, 128, 163, 232, 248, 326, 464, 496, 652, 899, 928, 992, 1304, 1798, 1856, 1984, 2608, 3596, 3712, 3968, 4727, 5053, 5216, 7192, 9454, 10106, 10432, 14384, 18908, 20212, 20864, 28768, 37816, 40424, 57536, 75632, 80848, 115072, 146537, 151264, 161696, 293074, 302528, 323392, 586148, 605056, 646784, 1172296, 2344592, 4689184, 9378368, 18756736]

約数ペア:

[(1, 18756736), (2, 9378368), (4, 4689184), (8, 2344592), (16, 1172296), (29, 646784), (31, 605056), (32, 586148), (58, 323392), (62, 302528), (64, 293074), (116, 161696), (124, 151264), (128, 146537), (163, 115072), (232, 80848), (248, 75632), (326, 57536), (464, 40424), (496, 37816), (652, 28768), (899, 20864), (928, 20212), (992, 18908), (1304, 14384), (1798, 10432), (1856, 10106), (1984, 9454), (2608, 7192), (3596, 5216), (3712, 5053), (3968, 4727)]