20184100820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77631157}}^1$

素因数の和:77631179

約数の個数: 24

約数和(自身を含む): 45647120904

約数和(自身を除く): 25463020084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77631157, 155262314, 310524628, 388155785, 776311570, 1009205041, 1552623140, 2018410082, 4036820164, 5046025205, 10092050410, 20184100820]

約数ペア:

[(1, 20184100820), (2, 10092050410), (4, 5046025205), (5, 4036820164), (10, 2018410082), (13, 1552623140), (20, 1009205041), (26, 776311570), (52, 388155785), (65, 310524628), (130, 155262314), (260, 77631157)]