20698144

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{577}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 43696800

約数和(自身を除く): 22998656

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 76, 118, 152, 236, 304, 472, 577, 608, 944, 1121, 1154, 1888, 2242, 2308, 4484, 4616, 8968, 9232, 10963, 17936, 18464, 21926, 34043, 35872, 43852, 68086, 87704, 136172, 175408, 272344, 350816, 544688, 646817, 1089376, 1293634, 2587268, 5174536, 10349072, 20698144]

約数ペア:

[(1, 20698144), (2, 10349072), (4, 5174536), (8, 2587268), (16, 1293634), (19, 1089376), (32, 646817), (38, 544688), (59, 350816), (76, 272344), (118, 175408), (152, 136172), (236, 87704), (304, 68086), (472, 43852), (577, 35872), (608, 34043), (944, 21926), (1121, 18464), (1154, 17936), (1888, 10963), (2242, 9232), (2308, 8968), (4484, 4616)]