64999090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{38461}}^1$

素因数の和:38494

約数の個数: 24

約数和(自身を含む): 126693828

約数和(自身を除く): 61694738

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 38461, 76922, 192305, 384610, 499993, 999986, 2499965, 4999930, 6499909, 12999818, 32499545, 64999090]

約数ペア:

[(1, 64999090), (2, 32499545), (5, 12999818), (10, 6499909), (13, 4999930), (26, 2499965), (65, 999986), (130, 499993), (169, 384610), (338, 192305), (845, 76922), (1690, 38461)]