218212940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{2239}}^1$

素因数の和:2702

約数の個数: 48

約数和(自身を含む): 501258240

約数和(自身を除く): 283045300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 443, 886, 1772, 2215, 2239, 4430, 4478, 4873, 8860, 8956, 9746, 11195, 19492, 22390, 24365, 24629, 44780, 48730, 49258, 97460, 98516, 123145, 246290, 492580, 991877, 1983754, 3967508, 4959385, 9918770, 10910647, 19837540, 21821294, 43642588, 54553235, 109106470, 218212940]

約数ペア:

[(1, 218212940), (2, 109106470), (4, 54553235), (5, 43642588), (10, 21821294), (11, 19837540), (20, 10910647), (22, 9918770), (44, 4959385), (55, 3967508), (110, 1983754), (220, 991877), (443, 492580), (886, 246290), (1772, 123145), (2215, 98516), (2239, 97460), (4430, 49258), (4478, 48730), (4873, 44780), (8860, 24629), (8956, 24365), (9746, 22390), (11195, 19492)]