2057186420

素因数分解:

$2^2\times 5^1\times {\mathrm{2521}}^1\times {\mathrm{40801}}^1$

素因数の和:43331

約数の個数: 24

約数和(自身を含む): 4321911048

約数和(自身を除く): 2264724628

約数列:

[1, 2, 4, 5, 10, 20, 2521, 5042, 10084, 12605, 25210, 40801, 50420, 81602, 163204, 204005, 408010, 816020, 102859321, 205718642, 411437284, 514296605, 1028593210, 2057186420]

約数ペア:

[(1, 2057186420), (2, 1028593210), (4, 514296605), (5, 411437284), (10, 205718642), (20, 102859321), (2521, 816020), (5042, 408010), (10084, 204005), (12605, 163204), (25210, 81602), (40801, 50420)]