20856552620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1\times {\mathrm{54877}}^1$

素因数の和:55530

約数の個数: 48

約数和(自身を含む): 45286203648

約数和(自身を除く): 24429651028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 613, 620, 1226, 2452, 3065, 6130, 12260, 19003, 38006, 54877, 76012, 95015, 109754, 190030, 219508, 274385, 380060, 548770, 1097540, 1701187, 3402374, 6804748, 8505935, 17011870, 33639601, 34023740, 67279202, 134558404, 168198005, 336396010, 672792020, 1042827631, 2085655262, 4171310524, 5214138155, 10428276310, 20856552620]

約数ペア:

[(1, 20856552620), (2, 10428276310), (4, 5214138155), (5, 4171310524), (10, 2085655262), (20, 1042827631), (31, 672792020), (62, 336396010), (124, 168198005), (155, 134558404), (310, 67279202), (613, 34023740), (620, 33639601), (1226, 17011870), (2452, 8505935), (3065, 6804748), (6130, 3402374), (12260, 1701187), (19003, 1097540), (38006, 548770), (54877, 380060), (76012, 274385), (95015, 219508), (109754, 190030)]