71691280

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{10069}}^1$

素因数の和:10171

約数の個数: 40

約数和(自身を含む): 168571800

約数和(自身を除く): 96880520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 10069, 20138, 40276, 50345, 80552, 100690, 161104, 201380, 402760, 805520, 896141, 1792282, 3584564, 4480705, 7169128, 8961410, 14338256, 17922820, 35845640, 71691280]

約数ペア:

[(1, 71691280), (2, 35845640), (4, 17922820), (5, 14338256), (8, 8961410), (10, 7169128), (16, 4480705), (20, 3584564), (40, 1792282), (80, 896141), (89, 805520), (178, 402760), (356, 201380), (445, 161104), (712, 100690), (890, 80552), (1424, 50345), (1780, 40276), (3560, 20138), (7120, 10069)]