25915760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24919}}^1$

素因数の和:24945

約数の個数: 40

約数和(自身を含む): 64891680

約数和(自身を除く): 38975920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 24919, 49838, 99676, 124595, 199352, 249190, 323947, 398704, 498380, 647894, 996760, 1295788, 1619735, 1993520, 2591576, 3239470, 5183152, 6478940, 12957880, 25915760]

約数ペア:

[(1, 25915760), (2, 12957880), (4, 6478940), (5, 5183152), (8, 3239470), (10, 2591576), (13, 1993520), (16, 1619735), (20, 1295788), (26, 996760), (40, 647894), (52, 498380), (65, 398704), (80, 323947), (104, 249190), (130, 199352), (208, 124595), (260, 99676), (520, 49838), (1040, 24919)]