291264080

素因数分解:

$2^4\times 5^1\times {\mathrm{3640801}}^1$

素因数の和:3640814

約数の個数: 20

約数和(自身を含む): 677189172

約数和(自身を除く): 385925092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640801, 7281602, 14563204, 18204005, 29126408, 36408010, 58252816, 72816020, 145632040, 291264080]

約数ペア:

[(1, 291264080), (2, 145632040), (4, 72816020), (5, 58252816), (8, 36408010), (10, 29126408), (16, 18204005), (20, 14563204), (40, 7281602), (80, 3640801)]