20044840

素因数分解:

$2^3\times 5^1\times {\mathrm{501121}}^1$

素因数の和:501132

約数の個数: 16

約数和(自身を含む): 45100980

約数和(自身を除く): 25056140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501121, 1002242, 2004484, 2505605, 4008968, 5011210, 10022420, 20044840]

約数ペア:

[(1, 20044840), (2, 10022420), (4, 5011210), (5, 4008968), (8, 2505605), (10, 2004484), (20, 1002242), (40, 501121)]