87761680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15451}}^1$

素因数の和:15535

約数の個数: 40

約数和(自身を含む): 206933184

約数和(自身を除く): 119171504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15451, 30902, 61804, 77255, 123608, 154510, 247216, 309020, 618040, 1097021, 1236080, 2194042, 4388084, 5485105, 8776168, 10970210, 17552336, 21940420, 43880840, 87761680]

約数ペア:

[(1, 87761680), (2, 43880840), (4, 21940420), (5, 17552336), (8, 10970210), (10, 8776168), (16, 5485105), (20, 4388084), (40, 2194042), (71, 1236080), (80, 1097021), (142, 618040), (284, 309020), (355, 247216), (568, 154510), (710, 123608), (1136, 77255), (1420, 61804), (2840, 30902), (5680, 15451)]