71897720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41801}}^1$

素因数の和:41855

約数の個数: 32

約数和(自身を含む): 165535920

約数和(自身を除く): 93638200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41801, 83602, 167204, 209005, 334408, 418010, 836020, 1672040, 1797443, 3594886, 7189772, 8987215, 14379544, 17974430, 35948860, 71897720]

約数ペア:

[(1, 71897720), (2, 35948860), (4, 17974430), (5, 14379544), (8, 8987215), (10, 7189772), (20, 3594886), (40, 1797443), (43, 1672040), (86, 836020), (172, 418010), (215, 334408), (344, 209005), (430, 167204), (860, 83602), (1720, 41801)]