68413780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{647}}^1$

素因数の和:984

約数の個数: 48

約数和(自身を含む): 152845056

約数和(自身を除く): 84431276

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 311, 340, 622, 647, 1244, 1294, 1555, 2588, 3110, 3235, 5287, 6220, 6470, 10574, 10999, 12940, 21148, 21998, 26435, 43996, 52870, 54995, 105740, 109990, 201217, 219980, 402434, 804868, 1006085, 2012170, 3420689, 4024340, 6841378, 13682756, 17103445, 34206890, 68413780]

約数ペア:

[(1, 68413780), (2, 34206890), (4, 17103445), (5, 13682756), (10, 6841378), (17, 4024340), (20, 3420689), (34, 2012170), (68, 1006085), (85, 804868), (170, 402434), (311, 219980), (340, 201217), (622, 109990), (647, 105740), (1244, 54995), (1294, 52870), (1555, 43996), (2588, 26435), (3110, 21998), (3235, 21148), (5287, 12940), (6220, 10999), (6470, 10574)]