219320060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{997}}^1$

素因数の和:1670

約数の個数: 48

約数和(自身を含む): 488908224

約数和(自身を除く): 269588164

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 647, 997, 1294, 1994, 2588, 3235, 3988, 4985, 6470, 9970, 10999, 12940, 16949, 19940, 21998, 33898, 43996, 54995, 67796, 84745, 109990, 169490, 219980, 338980, 645059, 1290118, 2580236, 3225295, 6450590, 10966003, 12901180, 21932006, 43864012, 54830015, 109660030, 219320060]

約数ペア:

[(1, 219320060), (2, 109660030), (4, 54830015), (5, 43864012), (10, 21932006), (17, 12901180), (20, 10966003), (34, 6450590), (68, 3225295), (85, 2580236), (170, 1290118), (340, 645059), (647, 338980), (997, 219980), (1294, 169490), (1994, 109990), (2588, 84745), (3235, 67796), (3988, 54995), (4985, 43996), (6470, 33898), (9970, 21998), (10999, 19940), (12940, 16949)]