18009290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{281}}^1$

素因数の和:347

約数の個数: 64

約数和(自身を含む): 38374560

約数和(自身を除く): 20365270

約数列:

[1, 2, 5, 10, 13, 17, 26, 29, 34, 58, 65, 85, 130, 145, 170, 221, 281, 290, 377, 442, 493, 562, 754, 986, 1105, 1405, 1885, 2210, 2465, 2810, 3653, 3770, 4777, 4930, 6409, 7306, 8149, 9554, 12818, 16298, 18265, 23885, 32045, 36530, 40745, 47770, 62101, 64090, 81490, 105937, 124202, 138533, 211874, 277066, 310505, 529685, 621010, 692665, 1059370, 1385330, 1800929, 3601858, 9004645, 18009290]

約数ペア:

[(1, 18009290), (2, 9004645), (5, 3601858), (10, 1800929), (13, 1385330), (17, 1059370), (26, 692665), (29, 621010), (34, 529685), (58, 310505), (65, 277066), (85, 211874), (130, 138533), (145, 124202), (170, 105937), (221, 81490), (281, 64090), (290, 62101), (377, 47770), (442, 40745), (493, 36530), (562, 32045), (754, 23885), (986, 18265), (1105, 16298), (1405, 12818), (1885, 9554), (2210, 8149), (2465, 7306), (2810, 6409), (3653, 4930), (3770, 4777)]