20102420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77317}}^1$

素因数の和:77339

約数の個数: 24

約数和(自身を含む): 45462984

約数和(自身を除く): 25360564

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77317, 154634, 309268, 386585, 773170, 1005121, 1546340, 2010242, 4020484, 5025605, 10051210, 20102420]

約数ペア:

[(1, 20102420), (2, 10051210), (4, 5025605), (5, 4020484), (10, 2010242), (13, 1546340), (20, 1005121), (26, 773170), (52, 386585), (65, 309268), (130, 154634), (260, 77317)]