19510940

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5639}}^1$

素因数の和:5821

約数の個数: 24

約数和(自身を含む): 41217120

約数和(自身を除く): 21706180

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 5639, 11278, 22556, 28195, 56390, 112780, 975547, 1951094, 3902188, 4877735, 9755470, 19510940]

約数ペア:

[(1, 19510940), (2, 9755470), (4, 4877735), (5, 3902188), (10, 1951094), (20, 975547), (173, 112780), (346, 56390), (692, 28195), (865, 22556), (1730, 11278), (3460, 5639)]