217258840

素因数分解:

$2^3\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{4463}}^1$

素因数の和:5691

約数の個数: 32

約数和(自身を含む): 489343680

約数和(自身を除く): 272084840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1217, 2434, 4463, 4868, 6085, 8926, 9736, 12170, 17852, 22315, 24340, 35704, 44630, 48680, 89260, 178520, 5431471, 10862942, 21725884, 27157355, 43451768, 54314710, 108629420, 217258840]

約数ペア:

[(1, 217258840), (2, 108629420), (4, 54314710), (5, 43451768), (8, 27157355), (10, 21725884), (20, 10862942), (40, 5431471), (1217, 178520), (2434, 89260), (4463, 48680), (4868, 44630), (6085, 35704), (8926, 24340), (9736, 22315), (12170, 17852)]