30915820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118907}}^1$

素因数の和:118929

約数の個数: 24

約数和(自身を含む): 69917904

約数和(自身を除く): 39002084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 118907, 237814, 475628, 594535, 1189070, 1545791, 2378140, 3091582, 6183164, 7728955, 15457910, 30915820]

約数ペア:

[(1, 30915820), (2, 15457910), (4, 7728955), (5, 6183164), (10, 3091582), (13, 2378140), (20, 1545791), (26, 1189070), (52, 594535), (65, 475628), (130, 237814), (260, 118907)]