4221620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1249}}^1$

素因数の和:1284

約数の個数: 36

約数和(自身を含む): 9607500

約数和(自身を除く): 5385880

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1249, 1690, 2498, 3380, 4996, 6245, 12490, 16237, 24980, 32474, 64948, 81185, 162370, 211081, 324740, 422162, 844324, 1055405, 2110810, 4221620]

約数ペア:

[(1, 4221620), (2, 2110810), (4, 1055405), (5, 844324), (10, 422162), (13, 324740), (20, 211081), (26, 162370), (52, 81185), (65, 64948), (130, 32474), (169, 24980), (260, 16237), (338, 12490), (676, 6245), (845, 4996), (1249, 3380), (1690, 2498)]