87886640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{15473}}^1$

素因数の和:15557

約数の個数: 40

約数和(自身を含む): 207227808

約数和(自身を除く): 119341168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 15473, 30946, 61892, 77365, 123784, 154730, 247568, 309460, 618920, 1098583, 1237840, 2197166, 4394332, 5492915, 8788664, 10985830, 17577328, 21971660, 43943320, 87886640]

約数ペア:

[(1, 87886640), (2, 43943320), (4, 21971660), (5, 17577328), (8, 10985830), (10, 8788664), (16, 5492915), (20, 4394332), (40, 2197166), (71, 1237840), (80, 1098583), (142, 618920), (284, 309460), (355, 247568), (568, 154730), (710, 123784), (1136, 77365), (1420, 61892), (2840, 30946), (5680, 15473)]