2756220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 7838208

約数和(自身を除く): 5081988

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 647, 710, 852, 1065, 1294, 1420, 1941, 2130, 2588, 3235, 3882, 4260, 6470, 7764, 9705, 12940, 19410, 38820, 45937, 91874, 137811, 183748, 229685, 275622, 459370, 551244, 689055, 918740, 1378110, 2756220]

約数ペア:

[(1, 2756220), (2, 1378110), (3, 918740), (4, 689055), (5, 551244), (6, 459370), (10, 275622), (12, 229685), (15, 183748), (20, 137811), (30, 91874), (60, 45937), (71, 38820), (142, 19410), (213, 12940), (284, 9705), (355, 7764), (426, 6470), (647, 4260), (710, 3882), (852, 3235), (1065, 2588), (1294, 2130), (1420, 1941)]