164705440

素因数分解:

$2^5\times 5^1\times {\mathrm{1029409}}^1$

素因数の和:1029424

約数の個数: 24

約数和(自身を含む): 389116980

約数和(自身を除く): 224411540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1029409, 2058818, 4117636, 5147045, 8235272, 10294090, 16470544, 20588180, 32941088, 41176360, 82352720, 164705440]

約数ペア:

[(1, 164705440), (2, 82352720), (4, 41176360), (5, 32941088), (8, 20588180), (10, 16470544), (16, 10294090), (20, 8235272), (32, 5147045), (40, 4117636), (80, 2058818), (160, 1029409)]