71488840

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{16703}}^1$

素因数の和:16821

約数の個数: 32

約数和(自身を含む): 162362880

約数和(自身を除く): 90874040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 16703, 33406, 66812, 83515, 133624, 167030, 334060, 668120, 1787221, 3574442, 7148884, 8936105, 14297768, 17872210, 35744420, 71488840]

約数ペア:

[(1, 71488840), (2, 35744420), (4, 17872210), (5, 14297768), (8, 8936105), (10, 7148884), (20, 3574442), (40, 1787221), (107, 668120), (214, 334060), (428, 167030), (535, 133624), (856, 83515), (1070, 66812), (2140, 33406), (4280, 16703)]