20147887508

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{289099}}^1$

素因数の和:289260

約数の個数: 48

約数和(自身を含む): 42740544000

約数和(自身を除く): 22592656492

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 131, 133, 262, 266, 524, 532, 917, 1834, 2489, 3668, 4978, 9956, 17423, 34846, 69692, 289099, 578198, 1156396, 2023693, 4047386, 5492881, 8094772, 10985762, 21971524, 37871969, 38450167, 75743938, 76900334, 151487876, 153800668, 265103783, 530207566, 719567411, 1060415132, 1439134822, 2878269644, 5036971877, 10073943754, 20147887508]

約数ペア:

[(1, 20147887508), (2, 10073943754), (4, 5036971877), (7, 2878269644), (14, 1439134822), (19, 1060415132), (28, 719567411), (38, 530207566), (76, 265103783), (131, 153800668), (133, 151487876), (262, 76900334), (266, 75743938), (524, 38450167), (532, 37871969), (917, 21971524), (1834, 10985762), (2489, 8094772), (3668, 5492881), (4978, 4047386), (9956, 2023693), (17423, 1156396), (34846, 578198), (69692, 289099)]