8458840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16267}}^1$

素因数の和:16291

約数の個数: 32

約数和(自身を含む): 20497680

約数和(自身を除く): 12038840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 16267, 32534, 65068, 81335, 130136, 162670, 211471, 325340, 422942, 650680, 845884, 1057355, 1691768, 2114710, 4229420, 8458840]

約数ペア:

[(1, 8458840), (2, 4229420), (4, 2114710), (5, 1691768), (8, 1057355), (10, 845884), (13, 650680), (20, 422942), (26, 325340), (40, 211471), (52, 162670), (65, 130136), (104, 81335), (130, 65068), (260, 32534), (520, 16267)]