87815120

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{2029}}^1$

素因数の和:2583

約数の個数: 40

約数和(自身を含む): 204648360

約数和(自身を除く): 116833240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 2029, 2164, 2705, 4058, 4328, 5410, 8116, 8656, 10145, 10820, 16232, 20290, 21640, 32464, 40580, 43280, 81160, 162320, 1097689, 2195378, 4390756, 5488445, 8781512, 10976890, 17563024, 21953780, 43907560, 87815120]

約数ペア:

[(1, 87815120), (2, 43907560), (4, 21953780), (5, 17563024), (8, 10976890), (10, 8781512), (16, 5488445), (20, 4390756), (40, 2195378), (80, 1097689), (541, 162320), (1082, 81160), (2029, 43280), (2164, 40580), (2705, 32464), (4058, 21640), (4328, 20290), (5410, 16232), (8116, 10820), (8656, 10145)]