20860380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115891}}^1$

素因数の和:115906

約数の個数: 36

約数和(自身を含む): 63277032

約数和(自身を除く): 42416652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115891, 231782, 347673, 463564, 579455, 695346, 1043019, 1158910, 1390692, 1738365, 2086038, 2317820, 3476730, 4172076, 5215095, 6953460, 10430190, 20860380]

約数ペア:

[(1, 20860380), (2, 10430190), (3, 6953460), (4, 5215095), (5, 4172076), (6, 3476730), (9, 2317820), (10, 2086038), (12, 1738365), (15, 1390692), (18, 1158910), (20, 1043019), (30, 695346), (36, 579455), (45, 463564), (60, 347673), (90, 231782), (180, 115891)]