81906540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1365109}}^1$

素因数の和:1365121

約数の個数: 24

約数和(自身を含む): 229338480

約数和(自身を除く): 147431940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1365109, 2730218, 4095327, 5460436, 6825545, 8190654, 13651090, 16381308, 20476635, 27302180, 40953270, 81906540]

約数ペア:

[(1, 81906540), (2, 40953270), (3, 27302180), (4, 20476635), (5, 16381308), (6, 13651090), (10, 8190654), (12, 6825545), (15, 5460436), (20, 4095327), (30, 2730218), (60, 1365109)]