42438380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68449}}^1$

素因数の和:68489

約数の個数: 24

約数和(自身を含む): 91996800

約数和(自身を除く): 49558420

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 68449, 136898, 273796, 342245, 684490, 1368980, 2121919, 4243838, 8487676, 10609595, 21219190, 42438380]

約数ペア:

[(1, 42438380), (2, 21219190), (4, 10609595), (5, 8487676), (10, 4243838), (20, 2121919), (31, 1368980), (62, 684490), (124, 342245), (155, 273796), (310, 136898), (620, 68449)]