20687912

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 27834328

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 119, 124, 136, 217, 238, 248, 434, 476, 527, 701, 868, 952, 1054, 1402, 1736, 2108, 2804, 3689, 4216, 4907, 5608, 7378, 9814, 11917, 14756, 19628, 21731, 23834, 29512, 39256, 43462, 47668, 83419, 86924, 95336, 152117, 166838, 173848, 304234, 333676, 369427, 608468, 667352, 738854, 1216936, 1477708, 2585989, 2955416, 5171978, 10343956, 20687912]

約数ペア:

[(1, 20687912), (2, 10343956), (4, 5171978), (7, 2955416), (8, 2585989), (14, 1477708), (17, 1216936), (28, 738854), (31, 667352), (34, 608468), (56, 369427), (62, 333676), (68, 304234), (119, 173848), (124, 166838), (136, 152117), (217, 95336), (238, 86924), (248, 83419), (434, 47668), (476, 43462), (527, 39256), (701, 29512), (868, 23834), (952, 21731), (1054, 19628), (1402, 14756), (1736, 11917), (2108, 9814), (2804, 7378), (3689, 5608), (4216, 4907)]