81972705

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{188443}}^1$

素因数の和:188480

約数の個数: 16

約数和(自身を含む): 135679680

約数和(自身を除く): 53706975

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 188443, 565329, 942215, 2826645, 5464847, 16394541, 27324235, 81972705]

約数ペア:

[(1, 81972705), (3, 27324235), (5, 16394541), (15, 5464847), (29, 2826645), (87, 942215), (145, 565329), (435, 188443)]