18547820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{283}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 40793760

約数和(自身を除く): 22245940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 113, 116, 145, 226, 283, 290, 452, 565, 566, 580, 1130, 1132, 1415, 2260, 2830, 3277, 5660, 6554, 8207, 13108, 16385, 16414, 31979, 32770, 32828, 41035, 63958, 65540, 82070, 127916, 159895, 164140, 319790, 639580, 927391, 1854782, 3709564, 4636955, 9273910, 18547820]

約数ペア:

[(1, 18547820), (2, 9273910), (4, 4636955), (5, 3709564), (10, 1854782), (20, 927391), (29, 639580), (58, 319790), (113, 164140), (116, 159895), (145, 127916), (226, 82070), (283, 65540), (290, 63958), (452, 41035), (565, 32828), (566, 32770), (580, 31979), (1130, 16414), (1132, 16385), (1415, 13108), (2260, 8207), (2830, 6554), (3277, 5660)]