20469764

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 43612800

約数和(自身を除く): 23143036

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 109, 133, 218, 266, 353, 436, 532, 706, 763, 1412, 1526, 2071, 2471, 3052, 4142, 4942, 6707, 8284, 9884, 13414, 14497, 26828, 28994, 38477, 46949, 57988, 76954, 93898, 153908, 187796, 269339, 538678, 731063, 1077356, 1462126, 2924252, 5117441, 10234882, 20469764]

約数ペア:

[(1, 20469764), (2, 10234882), (4, 5117441), (7, 2924252), (14, 1462126), (19, 1077356), (28, 731063), (38, 538678), (76, 269339), (109, 187796), (133, 153908), (218, 93898), (266, 76954), (353, 57988), (436, 46949), (532, 38477), (706, 28994), (763, 26828), (1412, 14497), (1526, 13414), (2071, 9884), (2471, 8284), (3052, 6707), (4142, 4942)]