20138040940

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2050717}}^1$

素因数の和:2051217

約数の個数: 24

約数和(自身を含む): 42376036752

約数和(自身を除く): 22237995812

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 2050717, 4101434, 8202868, 10253585, 20507170, 41014340, 1006902047, 2013804094, 4027608188, 5034510235, 10069020470, 20138040940]

約数ペア:

[(1, 20138040940), (2, 10069020470), (4, 5034510235), (5, 4027608188), (10, 2013804094), (20, 1006902047), (491, 41014340), (982, 20507170), (1964, 10253585), (2455, 8202868), (4910, 4101434), (9820, 2050717)]