2221980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1277}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 6441120

約数和(自身を除く): 4219140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1277, 1740, 2554, 3831, 5108, 6385, 7662, 12770, 15324, 19155, 25540, 37033, 38310, 74066, 76620, 111099, 148132, 185165, 222198, 370330, 444396, 555495, 740660, 1110990, 2221980]

約数ペア:

[(1, 2221980), (2, 1110990), (3, 740660), (4, 555495), (5, 444396), (6, 370330), (10, 222198), (12, 185165), (15, 148132), (20, 111099), (29, 76620), (30, 74066), (58, 38310), (60, 37033), (87, 25540), (116, 19155), (145, 15324), (174, 12770), (290, 7662), (348, 6385), (435, 5108), (580, 3831), (870, 2554), (1277, 1740)]