20189914940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77653519}}^1$

素因数の和:77653541

約数の個数: 24

約数和(自身を含む): 45660269760

約数和(自身を除く): 25470354820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77653519, 155307038, 310614076, 388267595, 776535190, 1009495747, 1553070380, 2018991494, 4037982988, 5047478735, 10094957470, 20189914940]

約数ペア:

[(1, 20189914940), (2, 10094957470), (4, 5047478735), (5, 4037982988), (10, 2018991494), (13, 1553070380), (20, 1009495747), (26, 776535190), (52, 388267595), (65, 310614076), (130, 155307038), (260, 77653519)]