20316790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1193}}^1$

素因数の和:1344

約数の個数: 32

約数和(自身を含む): 39717216

約数和(自身を除く): 19400426

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 131, 262, 655, 1193, 1310, 1703, 2386, 3406, 5965, 8515, 11930, 15509, 17030, 31018, 77545, 155090, 156283, 312566, 781415, 1562830, 2031679, 4063358, 10158395, 20316790]

約数ペア:

[(1, 20316790), (2, 10158395), (5, 4063358), (10, 2031679), (13, 1562830), (26, 781415), (65, 312566), (130, 156283), (131, 155090), (262, 77545), (655, 31018), (1193, 17030), (1310, 15509), (1703, 11930), (2386, 8515), (3406, 5965)]