18043840

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{499}}^1$

素因数の和:629

約数の個数: 56

約数和(自身を含む): 43434000

約数和(自身を除く): 25390160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 499, 565, 904, 998, 1130, 1808, 1996, 2260, 2495, 3616, 3992, 4520, 4990, 7232, 7984, 9040, 9980, 15968, 18080, 19960, 31936, 36160, 39920, 56387, 79840, 112774, 159680, 225548, 281935, 451096, 563870, 902192, 1127740, 1804384, 2255480, 3608768, 4510960, 9021920, 18043840]

約数ペア:

[(1, 18043840), (2, 9021920), (4, 4510960), (5, 3608768), (8, 2255480), (10, 1804384), (16, 1127740), (20, 902192), (32, 563870), (40, 451096), (64, 281935), (80, 225548), (113, 159680), (160, 112774), (226, 79840), (320, 56387), (452, 39920), (499, 36160), (565, 31936), (904, 19960), (998, 18080), (1130, 15968), (1808, 9980), (1996, 9040), (2260, 7984), (2495, 7232), (3616, 4990), (3992, 4520)]