1390657540

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{463}}^1\times {\mathrm{1901}}^1$

素因数の和:2452

約数の個数: 48

約数和(自身を含む): 2965294080

約数和(自身を除く): 1574636540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 463, 790, 926, 1580, 1852, 1901, 2315, 3802, 4630, 7604, 9260, 9505, 19010, 36577, 38020, 73154, 146308, 150179, 182885, 300358, 365770, 600716, 731540, 750895, 880163, 1501790, 1760326, 3003580, 3520652, 4400815, 8801630, 17603260, 69532877, 139065754, 278131508, 347664385, 695328770, 1390657540]

約数ペア:

[(1, 1390657540), (2, 695328770), (4, 347664385), (5, 278131508), (10, 139065754), (20, 69532877), (79, 17603260), (158, 8801630), (316, 4400815), (395, 3520652), (463, 3003580), (790, 1760326), (926, 1501790), (1580, 880163), (1852, 750895), (1901, 731540), (2315, 600716), (3802, 365770), (4630, 300358), (7604, 182885), (9260, 150179), (9505, 146308), (19010, 73154), (36577, 38020)]