164850640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29023}}^1$

素因数の和:29107

約数の個数: 40

約数和(自身を含む): 388689408

約数和(自身を除く): 223838768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 29023, 58046, 116092, 145115, 232184, 290230, 464368, 580460, 1160920, 2060633, 2321840, 4121266, 8242532, 10303165, 16485064, 20606330, 32970128, 41212660, 82425320, 164850640]

約数ペア:

[(1, 164850640), (2, 82425320), (4, 41212660), (5, 32970128), (8, 20606330), (10, 16485064), (16, 10303165), (20, 8242532), (40, 4121266), (71, 2321840), (80, 2060633), (142, 1160920), (284, 580460), (355, 464368), (568, 290230), (710, 232184), (1136, 145115), (1420, 116092), (2840, 58046), (5680, 29023)]