165718480

素因数分解:

$2^4\times 5^1\times {\mathrm{2071481}}^1$

素因数の和:2071494

約数の個数: 20

約数和(自身を含む): 385295652

約数和(自身を除く): 219577172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2071481, 4142962, 8285924, 10357405, 16571848, 20714810, 33143696, 41429620, 82859240, 165718480]

約数ペア:

[(1, 165718480), (2, 82859240), (4, 41429620), (5, 33143696), (8, 20714810), (10, 16571848), (16, 10357405), (20, 8285924), (40, 4142962), (80, 2071481)]