1270780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 3165120

約数和(自身を除く): 1894340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 313, 406, 580, 626, 812, 1015, 1252, 1565, 2030, 2191, 3130, 4060, 4382, 6260, 8764, 9077, 10955, 18154, 21910, 36308, 43820, 45385, 63539, 90770, 127078, 181540, 254156, 317695, 635390, 1270780]

約数ペア:

[(1, 1270780), (2, 635390), (4, 317695), (5, 254156), (7, 181540), (10, 127078), (14, 90770), (20, 63539), (28, 45385), (29, 43820), (35, 36308), (58, 21910), (70, 18154), (116, 10955), (140, 9077), (145, 8764), (203, 6260), (290, 4382), (313, 4060), (406, 3130), (580, 2191), (626, 2030), (812, 1565), (1015, 1252)]