20797584340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3919}}^1\times {\mathrm{20411}}^1$

素因数の和:24352

約数の個数: 48

約数和(自身を含む): 47048843520

約数和(自身を除く): 26251259180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3919, 7838, 15676, 19595, 20411, 39190, 40822, 50947, 78380, 81644, 101894, 102055, 203788, 204110, 254735, 265343, 408220, 509470, 530686, 1018940, 1061372, 1326715, 2653430, 5306860, 79990709, 159981418, 319962836, 399953545, 799907090, 1039879217, 1599814180, 2079758434, 4159516868, 5199396085, 10398792170, 20797584340]

約数ペア:

[(1, 20797584340), (2, 10398792170), (4, 5199396085), (5, 4159516868), (10, 2079758434), (13, 1599814180), (20, 1039879217), (26, 799907090), (52, 399953545), (65, 319962836), (130, 159981418), (260, 79990709), (3919, 5306860), (7838, 2653430), (15676, 1326715), (19595, 1061372), (20411, 1018940), (39190, 530686), (40822, 509470), (50947, 408220), (78380, 265343), (81644, 254735), (101894, 204110), (102055, 203788)]