340556840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{654917}}^1$

素因数の和:654941

約数の個数: 32

約数和(自身を含む): 825196680

約数和(自身を除く): 484639840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 654917, 1309834, 2619668, 3274585, 5239336, 6549170, 8513921, 13098340, 17027842, 26196680, 34055684, 42569605, 68111368, 85139210, 170278420, 340556840]

約数ペア:

[(1, 340556840), (2, 170278420), (4, 85139210), (5, 68111368), (8, 42569605), (10, 34055684), (13, 26196680), (20, 17027842), (26, 13098340), (40, 8513921), (52, 6549170), (65, 5239336), (104, 3274585), (130, 2619668), (260, 1309834), (520, 654917)]