155491880

素因数分解:

$2^3\times 5^1\times {\mathrm{3887297}}^1$

素因数の和:3887308

約数の個数: 16

約数和(自身を含む): 349856820

約数和(自身を除く): 194364940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3887297, 7774594, 15549188, 19436485, 31098376, 38872970, 77745940, 155491880]

約数ペア:

[(1, 155491880), (2, 77745940), (4, 38872970), (5, 31098376), (8, 19436485), (10, 15549188), (20, 7774594), (40, 3887297)]