20843290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6971}}^1$

素因数の和:7014

約数の個数: 32

約数和(自身を含む): 42166656

約数和(自身を除く): 21323366

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6971, 13942, 34855, 69710, 90623, 160333, 181246, 320666, 453115, 801665, 906230, 1603330, 2084329, 4168658, 10421645, 20843290]

約数ペア:

[(1, 20843290), (2, 10421645), (5, 4168658), (10, 2084329), (13, 1603330), (23, 906230), (26, 801665), (46, 453115), (65, 320666), (115, 181246), (130, 160333), (230, 90623), (299, 69710), (598, 34855), (1495, 13942), (2990, 6971)]