85128940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{327419}}^1$

素因数の和:327441

約数の個数: 24

約数和(自身を含む): 192522960

約数和(自身を除く): 107394020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 327419, 654838, 1309676, 1637095, 3274190, 4256447, 6548380, 8512894, 17025788, 21282235, 42564470, 85128940]

約数ペア:

[(1, 85128940), (2, 42564470), (4, 21282235), (5, 17025788), (10, 8512894), (13, 6548380), (20, 4256447), (26, 3274190), (52, 1637095), (65, 1309676), (130, 654838), (260, 327419)]