90248720

素因数分解:

$2^4\times 5^1\times {\mathrm{1128109}}^1$

素因数の和:1128122

約数の個数: 20

約数和(自身を含む): 209828460

約数和(自身を除く): 119579740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1128109, 2256218, 4512436, 5640545, 9024872, 11281090, 18049744, 22562180, 45124360, 90248720]

約数ペア:

[(1, 90248720), (2, 45124360), (4, 22562180), (5, 18049744), (8, 11281090), (10, 9024872), (16, 5640545), (20, 4512436), (40, 2256218), (80, 1128109)]