77401240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{563}}^1$

素因数の和:1072

約数の個数: 64

約数和(自身を含む): 199791360

約数和(自身を除く): 122390120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491, 563, 982, 1126, 1964, 2252, 2455, 2815, 3437, 3928, 3941, 4504, 4910, 5630, 6874, 7882, 9820, 11260, 13748, 15764, 17185, 19640, 19705, 22520, 27496, 31528, 34370, 39410, 68740, 78820, 137480, 157640, 276433, 552866, 1105732, 1382165, 1935031, 2211464, 2764330, 3870062, 5528660, 7740124, 9675155, 11057320, 15480248, 19350310, 38700620, 77401240]

約数ペア:

[(1, 77401240), (2, 38700620), (4, 19350310), (5, 15480248), (7, 11057320), (8, 9675155), (10, 7740124), (14, 5528660), (20, 3870062), (28, 2764330), (35, 2211464), (40, 1935031), (56, 1382165), (70, 1105732), (140, 552866), (280, 276433), (491, 157640), (563, 137480), (982, 78820), (1126, 68740), (1964, 39410), (2252, 34370), (2455, 31528), (2815, 27496), (3437, 22520), (3928, 19705), (3941, 19640), (4504, 17185), (4910, 15764), (5630, 13748), (6874, 11260), (7882, 9820)]