156976720

素因数分解:

$2^4\times 5^1\times {\mathrm{1962209}}^1$

素因数の和:1962222

約数の個数: 20

約数和(自身を含む): 364971060

約数和(自身を除く): 207994340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1962209, 3924418, 7848836, 9811045, 15697672, 19622090, 31395344, 39244180, 78488360, 156976720]

約数ペア:

[(1, 156976720), (2, 78488360), (4, 39244180), (5, 31395344), (8, 19622090), (10, 15697672), (16, 9811045), (20, 7848836), (40, 3924418), (80, 1962209)]