18679100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{16981}}^1$

素因数の和:17006

約数の個数: 36

約数和(自身を含む): 44221128

約数和(自身を除く): 25542028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 16981, 33962, 67924, 84905, 169810, 186791, 339620, 373582, 424525, 747164, 849050, 933955, 1698100, 1867910, 3735820, 4669775, 9339550, 18679100]

約数ペア:

[(1, 18679100), (2, 9339550), (4, 4669775), (5, 3735820), (10, 1867910), (11, 1698100), (20, 933955), (22, 849050), (25, 747164), (44, 424525), (50, 373582), (55, 339620), (100, 186791), (110, 169810), (220, 84905), (275, 67924), (550, 33962), (1100, 16981)]