129207940

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{7793}}^1$

素因数の和:8631

約数の個数: 24

約数和(自身を含む): 271698840

約数和(自身を除く): 142490900

約数列:

[1, 2, 4, 5, 10, 20, 829, 1658, 3316, 4145, 7793, 8290, 15586, 16580, 31172, 38965, 77930, 155860, 6460397, 12920794, 25841588, 32301985, 64603970, 129207940]

約数ペア:

[(1, 129207940), (2, 64603970), (4, 32301985), (5, 25841588), (10, 12920794), (20, 6460397), (829, 155860), (1658, 77930), (3316, 38965), (4145, 31172), (7793, 16580), (8290, 15586)]