81473080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{156679}}^1$

素因数の和:156703

約数の個数: 32

約数和(自身を含む): 197416800

約数和(自身を除く): 115943720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 156679, 313358, 626716, 783395, 1253432, 1566790, 2036827, 3133580, 4073654, 6267160, 8147308, 10184135, 16294616, 20368270, 40736540, 81473080]

約数ペア:

[(1, 81473080), (2, 40736540), (4, 20368270), (5, 16294616), (8, 10184135), (10, 8147308), (13, 6267160), (20, 4073654), (26, 3133580), (40, 2036827), (52, 1566790), (65, 1253432), (104, 783395), (130, 626716), (260, 313358), (520, 156679)]