87315920

素因数分解:

$2^4\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1069}}^1$

素因数の和:2103

約数の個数: 40

約数和(自身を含む): 203398440

約数和(自身を除く): 116082520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1021, 1069, 2042, 2138, 4084, 4276, 5105, 5345, 8168, 8552, 10210, 10690, 16336, 17104, 20420, 21380, 40840, 42760, 81680, 85520, 1091449, 2182898, 4365796, 5457245, 8731592, 10914490, 17463184, 21828980, 43657960, 87315920]

約数ペア:

[(1, 87315920), (2, 43657960), (4, 21828980), (5, 17463184), (8, 10914490), (10, 8731592), (16, 5457245), (20, 4365796), (40, 2182898), (80, 1091449), (1021, 85520), (1069, 81680), (2042, 42760), (2138, 40840), (4084, 21380), (4276, 20420), (5105, 17104), (5345, 16336), (8168, 10690), (8552, 10210)]