19575380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8089}}^1$

素因数の和:8120

約数の個数: 36

約数和(自身を含む): 45190740

約数和(自身を除く): 25615360

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 8089, 16178, 32356, 40445, 80890, 88979, 161780, 177958, 355916, 444895, 889790, 978769, 1779580, 1957538, 3915076, 4893845, 9787690, 19575380]

約数ペア:

[(1, 19575380), (2, 9787690), (4, 4893845), (5, 3915076), (10, 1957538), (11, 1779580), (20, 978769), (22, 889790), (44, 444895), (55, 355916), (110, 177958), (121, 161780), (220, 88979), (242, 80890), (484, 40445), (605, 32356), (1210, 16178), (2420, 8089)]