161980380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{899891}}^1$

素因数の和:899906

約数の個数: 36

約数和(自身を含む): 491341032

約数和(自身を除く): 329360652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 899891, 1799782, 2699673, 3599564, 4499455, 5399346, 8099019, 8998910, 10798692, 13498365, 16198038, 17997820, 26996730, 32396076, 40495095, 53993460, 80990190, 161980380]

約数ペア:

[(1, 161980380), (2, 80990190), (3, 53993460), (4, 40495095), (5, 32396076), (6, 26996730), (9, 17997820), (10, 16198038), (12, 13498365), (15, 10798692), (18, 8998910), (20, 8099019), (30, 5399346), (36, 4499455), (45, 3599564), (60, 2699673), (90, 1799782), (180, 899891)]