165649660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{1171}}^1$

素因数の和:1834

約数の個数: 48

約数和(自身を含む): 380403072

約数和(自身を除く): 214753412

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 643, 1171, 1286, 2342, 2572, 3215, 4684, 5855, 6430, 7073, 11710, 12860, 12881, 14146, 23420, 25762, 28292, 35365, 51524, 64405, 70730, 128810, 141460, 257620, 752953, 1505906, 3011812, 3764765, 7529530, 8282483, 15059060, 16564966, 33129932, 41412415, 82824830, 165649660]

約数ペア:

[(1, 165649660), (2, 82824830), (4, 41412415), (5, 33129932), (10, 16564966), (11, 15059060), (20, 8282483), (22, 7529530), (44, 3764765), (55, 3011812), (110, 1505906), (220, 752953), (643, 257620), (1171, 141460), (1286, 128810), (2342, 70730), (2572, 64405), (3215, 51524), (4684, 35365), (5855, 28292), (6430, 25762), (7073, 23420), (11710, 14146), (12860, 12881)]