68120680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:694

約数の個数: 64

約数和(自身を含む): 159440400

約数和(自身を除く): 91319720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 73, 82, 146, 164, 205, 292, 328, 365, 410, 569, 584, 730, 820, 1138, 1460, 1640, 2276, 2845, 2920, 2993, 4552, 5690, 5986, 11380, 11972, 14965, 22760, 23329, 23944, 29930, 41537, 46658, 59860, 83074, 93316, 116645, 119720, 166148, 186632, 207685, 233290, 332296, 415370, 466580, 830740, 933160, 1661480, 1703017, 3406034, 6812068, 8515085, 13624136, 17030170, 34060340, 68120680]

約数ペア:

[(1, 68120680), (2, 34060340), (4, 17030170), (5, 13624136), (8, 8515085), (10, 6812068), (20, 3406034), (40, 1703017), (41, 1661480), (73, 933160), (82, 830740), (146, 466580), (164, 415370), (205, 332296), (292, 233290), (328, 207685), (365, 186632), (410, 166148), (569, 119720), (584, 116645), (730, 93316), (820, 83074), (1138, 59860), (1460, 46658), (1640, 41537), (2276, 29930), (2845, 23944), (2920, 23329), (2993, 22760), (4552, 14965), (5690, 11972), (5986, 11380)]