204080020

素因数分解:

$2^2\times 5^1\times {\mathrm{1741}}^1\times {\mathrm{5861}}^1$

素因数の和:7611

約数の個数: 24

約数和(自身を含む): 428887368

約数和(自身を除く): 224807348

約数列:

[1, 2, 4, 5, 10, 20, 1741, 3482, 5861, 6964, 8705, 11722, 17410, 23444, 29305, 34820, 58610, 117220, 10204001, 20408002, 40816004, 51020005, 102040010, 204080020]

約数ペア:

[(1, 204080020), (2, 102040010), (4, 51020005), (5, 40816004), (10, 20408002), (20, 10204001), (1741, 117220), (3482, 58610), (5861, 34820), (6964, 29305), (8705, 23444), (11722, 17410)]