145413320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{279641}}^1$

素因数の和:279665

約数の個数: 32

約数和(自身を含む): 352348920

約数和(自身を除く): 206935600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 279641, 559282, 1118564, 1398205, 2237128, 2796410, 3635333, 5592820, 7270666, 11185640, 14541332, 18176665, 29082664, 36353330, 72706660, 145413320]

約数ペア:

[(1, 145413320), (2, 72706660), (4, 36353330), (5, 29082664), (8, 18176665), (10, 14541332), (13, 11185640), (20, 7270666), (26, 5592820), (40, 3635333), (52, 2796410), (65, 2237128), (104, 1398205), (130, 1118564), (260, 559282), (520, 279641)]