18413780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1087}}^1$

素因数の和:1125

約数の個数: 72

約数和(自身を含む): 48620544

約数和(自身を除く): 30206764

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, 1087, 1210, 1540, 1694, 2174, 2420, 3388, 4235, 4348, 5435, 7609, 8470, 10870, 11957, 15218, 16940, 21740, 23914, 30436, 38045, 47828, 59785, 76090, 83699, 119570, 131527, 152180, 167398, 239140, 263054, 334796, 418495, 526108, 657635, 836990, 920689, 1315270, 1673980, 1841378, 2630540, 3682756, 4603445, 9206890, 18413780]

約数ペア:

[(1, 18413780), (2, 9206890), (4, 4603445), (5, 3682756), (7, 2630540), (10, 1841378), (11, 1673980), (14, 1315270), (20, 920689), (22, 836990), (28, 657635), (35, 526108), (44, 418495), (55, 334796), (70, 263054), (77, 239140), (110, 167398), (121, 152180), (140, 131527), (154, 119570), (220, 83699), (242, 76090), (308, 59785), (385, 47828), (484, 38045), (605, 30436), (770, 23914), (847, 21740), (1087, 16940), (1210, 15218), (1540, 11957), (1694, 10870), (2174, 8470), (2420, 7609), (3388, 5435), (4235, 4348)]