129404780

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{6529}}^1$

素因数の和:7529

約数の個数: 24

約数和(自身を含む): 272065920

約数和(自身を除く): 142661140

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 6529, 9910, 13058, 19820, 26116, 32645, 65290, 130580, 6470239, 12940478, 25880956, 32351195, 64702390, 129404780]

約数ペア:

[(1, 129404780), (2, 64702390), (4, 32351195), (5, 25880956), (10, 12940478), (20, 6470239), (991, 130580), (1982, 65290), (3964, 32645), (4955, 26116), (6529, 19820), (9910, 13058)]