204960320

素因数分解:

$2^6\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1459}}^1$

素因数の和:1915

約数の個数: 56

約数和(自身を含む): 489508800

約数和(自身を除く): 284548480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 439, 878, 1459, 1756, 2195, 2918, 3512, 4390, 5836, 7024, 7295, 8780, 11672, 14048, 14590, 17560, 23344, 28096, 29180, 35120, 46688, 58360, 70240, 93376, 116720, 140480, 233440, 466880, 640501, 1281002, 2562004, 3202505, 5124008, 6405010, 10248016, 12810020, 20496032, 25620040, 40992064, 51240080, 102480160, 204960320]

約数ペア:

[(1, 204960320), (2, 102480160), (4, 51240080), (5, 40992064), (8, 25620040), (10, 20496032), (16, 12810020), (20, 10248016), (32, 6405010), (40, 5124008), (64, 3202505), (80, 2562004), (160, 1281002), (320, 640501), (439, 466880), (878, 233440), (1459, 140480), (1756, 116720), (2195, 93376), (2918, 70240), (3512, 58360), (4390, 46688), (5836, 35120), (7024, 29180), (7295, 28096), (8780, 23344), (11672, 17560), (14048, 14590)]