70678280

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2731}}^1$

素因数の和:3389

約数の個数: 32

約数和(自身を含む): 159330240

約数和(自身を除く): 88651960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1294, 2588, 2731, 3235, 5176, 5462, 6470, 10924, 12940, 13655, 21848, 25880, 27310, 54620, 109240, 1766957, 3533914, 7067828, 8834785, 14135656, 17669570, 35339140, 70678280]

約数ペア:

[(1, 70678280), (2, 35339140), (4, 17669570), (5, 14135656), (8, 8834785), (10, 7067828), (20, 3533914), (40, 1766957), (647, 109240), (1294, 54620), (2588, 27310), (2731, 25880), (3235, 21848), (5176, 13655), (5462, 12940), (6470, 10924)]