18401920

素因数分解:

$2^7\times 5^1\times {\mathrm{28753}}^1$

素因数の和:28772

約数の個数: 32

約数和(自身を含む): 43993620

約数和(自身を除く): 25591700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28753, 57506, 115012, 143765, 230024, 287530, 460048, 575060, 920096, 1150120, 1840192, 2300240, 3680384, 4600480, 9200960, 18401920]

約数ペア:

[(1, 18401920), (2, 9200960), (4, 4600480), (5, 3680384), (8, 2300240), (10, 1840192), (16, 1150120), (20, 920096), (32, 575060), (40, 460048), (64, 287530), (80, 230024), (128, 143765), (160, 115012), (320, 57506), (640, 28753)]