85865480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{1277}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 198179460

約数和(自身を除く): 112313980

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1277, 1640, 1681, 2554, 3362, 5108, 6385, 6724, 8405, 10216, 12770, 13448, 16810, 25540, 33620, 51080, 52357, 67240, 104714, 209428, 261785, 418856, 523570, 1047140, 2094280, 2146637, 4293274, 8586548, 10733185, 17173096, 21466370, 42932740, 85865480]

約数ペア:

[(1, 85865480), (2, 42932740), (4, 21466370), (5, 17173096), (8, 10733185), (10, 8586548), (20, 4293274), (40, 2146637), (41, 2094280), (82, 1047140), (164, 523570), (205, 418856), (328, 261785), (410, 209428), (820, 104714), (1277, 67240), (1640, 52357), (1681, 51080), (2554, 33620), (3362, 25540), (5108, 16810), (6385, 13448), (6724, 12770), (8405, 10216)]