12807860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49261}}^1$

素因数の和:49283

約数の個数: 24

約数和(自身を含む): 28966056

約数和(自身を除く): 16158196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49261, 98522, 197044, 246305, 492610, 640393, 985220, 1280786, 2561572, 3201965, 6403930, 12807860]

約数ペア:

[(1, 12807860), (2, 6403930), (4, 3201965), (5, 2561572), (10, 1280786), (13, 985220), (20, 640393), (26, 492610), (52, 246305), (65, 197044), (130, 98522), (260, 49261)]