700000028

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{5101}}^1$

素因数の和:5167

約数の個数: 72

約数和(自身を含む): 1568558880

約数和(自身を除く): 868558852

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 91, 116, 169, 182, 203, 338, 364, 377, 406, 676, 754, 812, 1183, 1508, 2366, 2639, 4732, 4901, 5101, 5278, 9802, 10202, 10556, 19604, 20404, 34307, 35707, 66313, 68614, 71414, 132626, 137228, 142828, 147929, 265252, 295858, 464191, 591716, 862069, 928382, 1035503, 1724138, 1856764, 1923077, 2071006, 3448276, 3846154, 4142012, 6034483, 7692308, 12068966, 13461539, 24137932, 25000001, 26923078, 50000002, 53846156, 100000004, 175000007, 350000014, 700000028]

約数ペア:

[(1, 700000028), (2, 350000014), (4, 175000007), (7, 100000004), (13, 53846156), (14, 50000002), (26, 26923078), (28, 25000001), (29, 24137932), (52, 13461539), (58, 12068966), (91, 7692308), (116, 6034483), (169, 4142012), (182, 3846154), (203, 3448276), (338, 2071006), (364, 1923077), (377, 1856764), (406, 1724138), (676, 1035503), (754, 928382), (812, 862069), (1183, 591716), (1508, 464191), (2366, 295858), (2639, 265252), (4732, 147929), (4901, 142828), (5101, 137228), (5278, 132626), (9802, 71414), (10202, 68614), (10556, 66313), (19604, 35707), (20404, 34307)]