64205320

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{5923}}^1$

素因数の和:6205

約数の個数: 32

約数和(自身を含む): 145019520

約数和(自身を除く): 80814200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 5923, 10840, 11846, 23692, 29615, 47384, 59230, 118460, 236920, 1605133, 3210266, 6420532, 8025665, 12841064, 16051330, 32102660, 64205320]

約数ペア:

[(1, 64205320), (2, 32102660), (4, 16051330), (5, 12841064), (8, 8025665), (10, 6420532), (20, 3210266), (40, 1605133), (271, 236920), (542, 118460), (1084, 59230), (1355, 47384), (2168, 29615), (2710, 23692), (5420, 11846), (5923, 10840)]