168400540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{9941}}^1$

素因数の和:9979

約数の個数: 72

約数和(自身を含む): 444288096

約数和(自身を除く): 275887556

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 9941, 16940, 19882, 39764, 49705, 69587, 99410, 109351, 139174, 198820, 218702, 278348, 347935, 437404, 546755, 695870, 765457, 1093510, 1202861, 1391740, 1530914, 2187020, 2405722, 3061828, 3827285, 4811444, 6014305, 7654570, 8420027, 12028610, 15309140, 16840054, 24057220, 33680108, 42100135, 84200270, 168400540]

約数ペア:

[(1, 168400540), (2, 84200270), (4, 42100135), (5, 33680108), (7, 24057220), (10, 16840054), (11, 15309140), (14, 12028610), (20, 8420027), (22, 7654570), (28, 6014305), (35, 4811444), (44, 3827285), (55, 3061828), (70, 2405722), (77, 2187020), (110, 1530914), (121, 1391740), (140, 1202861), (154, 1093510), (220, 765457), (242, 695870), (308, 546755), (385, 437404), (484, 347935), (605, 278348), (770, 218702), (847, 198820), (1210, 139174), (1540, 109351), (1694, 99410), (2420, 69587), (3388, 49705), (4235, 39764), (8470, 19882), (9941, 16940)]