140027620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{3181}}^1$

素因数の和:3292

約数の個数: 48

約数和(自身を含む): 307915776

約数和(自身を除く): 167888156

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 3181, 4402, 6362, 8804, 11005, 12724, 15905, 22010, 31810, 44020, 63620, 98611, 197222, 225851, 394444, 451702, 493055, 903404, 986110, 1129255, 1972220, 2258510, 4517020, 7001381, 14002762, 28005524, 35006905, 70013810, 140027620]

約数ペア:

[(1, 140027620), (2, 70013810), (4, 35006905), (5, 28005524), (10, 14002762), (20, 7001381), (31, 4517020), (62, 2258510), (71, 1972220), (124, 1129255), (142, 986110), (155, 903404), (284, 493055), (310, 451702), (355, 394444), (620, 225851), (710, 197222), (1420, 98611), (2201, 63620), (3181, 44020), (4402, 31810), (6362, 22010), (8804, 15905), (11005, 12724)]