156840920

素因数分解:

$2^3\times 5^1\times {\mathrm{3921023}}^1$

素因数の和:3921034

約数の個数: 16

約数和(自身を含む): 352892160

約数和(自身を除く): 196051240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3921023, 7842046, 15684092, 19605115, 31368184, 39210230, 78420460, 156840920]

約数ペア:

[(1, 156840920), (2, 78420460), (4, 39210230), (5, 31368184), (8, 19605115), (10, 15684092), (20, 7842046), (40, 3921023)]