20304080

素因数分解:

$2^4\times 5^1\times {\mathrm{253801}}^1$

素因数の和:253814

約数の個数: 20

約数和(自身を含む): 47207172

約数和(自身を除く): 26903092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253801, 507602, 1015204, 1269005, 2030408, 2538010, 4060816, 5076020, 10152040, 20304080]

約数ペア:

[(1, 20304080), (2, 10152040), (4, 5076020), (5, 4060816), (8, 2538010), (10, 2030408), (16, 1269005), (20, 1015204), (40, 507602), (80, 253801)]