20054740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:748

約数の個数: 48

約数和(自身を含む): 44375184

約数和(自身を除く): 24320444

約数列:

[1, 2, 4, 5, 10, 20, 37, 41, 74, 82, 148, 164, 185, 205, 370, 410, 661, 740, 820, 1322, 1517, 2644, 3034, 3305, 6068, 6610, 7585, 13220, 15170, 24457, 27101, 30340, 48914, 54202, 97828, 108404, 122285, 135505, 244570, 271010, 489140, 542020, 1002737, 2005474, 4010948, 5013685, 10027370, 20054740]

約数ペア:

[(1, 20054740), (2, 10027370), (4, 5013685), (5, 4010948), (10, 2005474), (20, 1002737), (37, 542020), (41, 489140), (74, 271010), (82, 244570), (148, 135505), (164, 122285), (185, 108404), (205, 97828), (370, 54202), (410, 48914), (661, 30340), (740, 27101), (820, 24457), (1322, 15170), (1517, 13220), (2644, 7585), (3034, 6610), (3305, 6068)]