9968970180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12780731}}^1$

素因数の和:12780756

約数の個数: 48

約数和(自身を含む): 30060281664

約数和(自身を除く): 20091311484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 12780731, 25561462, 38342193, 51122924, 63903655, 76684386, 127807310, 153368772, 166149503, 191710965, 255614620, 332299006, 383421930, 498448509, 664598012, 766843860, 830747515, 996897018, 1661495030, 1993794036, 2492242545, 3322990060, 4984485090, 9968970180]

約数ペア:

[(1, 9968970180), (2, 4984485090), (3, 3322990060), (4, 2492242545), (5, 1993794036), (6, 1661495030), (10, 996897018), (12, 830747515), (13, 766843860), (15, 664598012), (20, 498448509), (26, 383421930), (30, 332299006), (39, 255614620), (52, 191710965), (60, 166149503), (65, 153368772), (78, 127807310), (130, 76684386), (156, 63903655), (195, 51122924), (260, 38342193), (390, 25561462), (780, 12780731)]