28138012

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{233}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 59754240

約数和(自身を除く): 31616228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 227, 233, 266, 454, 466, 532, 908, 932, 1589, 1631, 3178, 3262, 4313, 4427, 6356, 6524, 8626, 8854, 17252, 17708, 30191, 30989, 52891, 60382, 61978, 105782, 120764, 123956, 211564, 370237, 740474, 1004929, 1480948, 2009858, 4019716, 7034503, 14069006, 28138012]

約数ペア:

[(1, 28138012), (2, 14069006), (4, 7034503), (7, 4019716), (14, 2009858), (19, 1480948), (28, 1004929), (38, 740474), (76, 370237), (133, 211564), (227, 123956), (233, 120764), (266, 105782), (454, 61978), (466, 60382), (532, 52891), (908, 30989), (932, 30191), (1589, 17708), (1631, 17252), (3178, 8854), (3262, 8626), (4313, 6524), (4427, 6356)]