858779080

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{2381}}^1$

素因数の和:2590

約数の個数: 64

約数和(自身を含む): 1975726080

約数和(自身を除く): 1116947000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 127, 142, 254, 284, 355, 508, 568, 635, 710, 1016, 1270, 1420, 2381, 2540, 2840, 4762, 5080, 9017, 9524, 11905, 18034, 19048, 23810, 36068, 45085, 47620, 72136, 90170, 95240, 169051, 180340, 302387, 338102, 360680, 604774, 676204, 845255, 1209548, 1352408, 1511935, 1690510, 2419096, 3023870, 3381020, 6047740, 6762040, 12095480, 21469477, 42938954, 85877908, 107347385, 171755816, 214694770, 429389540, 858779080]

約数ペア:

[(1, 858779080), (2, 429389540), (4, 214694770), (5, 171755816), (8, 107347385), (10, 85877908), (20, 42938954), (40, 21469477), (71, 12095480), (127, 6762040), (142, 6047740), (254, 3381020), (284, 3023870), (355, 2419096), (508, 1690510), (568, 1511935), (635, 1352408), (710, 1209548), (1016, 845255), (1270, 676204), (1420, 604774), (2381, 360680), (2540, 338102), (2840, 302387), (4762, 180340), (5080, 169051), (9017, 95240), (9524, 90170), (11905, 72136), (18034, 47620), (19048, 45085), (23810, 36068)]