221454695

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:416

約数の個数: 64

約数和(自身を含む): 350853120

約数和(自身を除く): 129398425

約数列:

[1, 5, 7, 11, 23, 35, 55, 77, 89, 115, 161, 253, 281, 385, 445, 623, 805, 979, 1265, 1405, 1771, 1967, 2047, 3091, 3115, 4895, 6463, 6853, 8855, 9835, 10235, 14329, 15455, 21637, 22517, 25009, 32315, 34265, 45241, 71093, 71645, 108185, 112585, 125045, 157619, 175063, 226205, 275099, 355465, 497651, 575207, 788095, 875315, 1375495, 1925693, 2488255, 2876035, 4026449, 6327277, 9628465, 20132245, 31636385, 44290939, 221454695]

約数ペア:

[(1, 221454695), (5, 44290939), (7, 31636385), (11, 20132245), (23, 9628465), (35, 6327277), (55, 4026449), (77, 2876035), (89, 2488255), (115, 1925693), (161, 1375495), (253, 875315), (281, 788095), (385, 575207), (445, 497651), (623, 355465), (805, 275099), (979, 226205), (1265, 175063), (1405, 157619), (1771, 125045), (1967, 112585), (2047, 108185), (3091, 71645), (3115, 71093), (4895, 45241), (6463, 34265), (6853, 32315), (8855, 25009), (9835, 22517), (10235, 21637), (14329, 15455)]