25715720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14951}}^1$

素因数の和:15005

約数の個数: 32

約数和(自身を含む): 59209920

約数和(自身を除く): 33494200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 14951, 29902, 59804, 74755, 119608, 149510, 299020, 598040, 642893, 1285786, 2571572, 3214465, 5143144, 6428930, 12857860, 25715720]

約数ペア:

[(1, 25715720), (2, 12857860), (4, 6428930), (5, 5143144), (8, 3214465), (10, 2571572), (20, 1285786), (40, 642893), (43, 598040), (86, 299020), (172, 149510), (215, 119608), (344, 74755), (430, 59804), (860, 29902), (1720, 14951)]