77801620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{6959}}^1$

素因数の和:7024

約数の個数: 48

約数和(自身を含む): 180069120

約数和(自身を除く): 102267500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 6959, 11180, 13918, 27836, 34795, 69590, 90467, 139180, 180934, 299237, 361868, 452335, 598474, 904670, 1196948, 1496185, 1809340, 2992370, 3890081, 5984740, 7780162, 15560324, 19450405, 38900810, 77801620]

約数ペア:

[(1, 77801620), (2, 38900810), (4, 19450405), (5, 15560324), (10, 7780162), (13, 5984740), (20, 3890081), (26, 2992370), (43, 1809340), (52, 1496185), (65, 1196948), (86, 904670), (130, 598474), (172, 452335), (215, 361868), (260, 299237), (430, 180934), (559, 139180), (860, 90467), (1118, 69590), (2236, 34795), (2795, 27836), (5590, 13918), (6959, 11180)]