20389968105

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{541}}^1\times {\mathrm{557}}^1$

素因数の和:1466

約数の個数: 64

約数和(自身を含む): 35363236608

約数和(自身を除く): 14973268503

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 347, 541, 557, 1041, 1623, 1671, 1735, 2705, 2785, 4511, 5205, 7033, 7241, 8115, 8355, 13533, 21099, 21723, 22555, 35165, 36205, 67665, 105495, 108615, 187727, 193279, 301337, 563181, 579837, 904011, 938635, 966395, 1506685, 2440451, 2512627, 2815905, 2899185, 3917381, 4520055, 7321353, 7537881, 11752143, 12202255, 12563135, 19586905, 36606765, 37689405, 58760715, 104563939, 313691817, 522819695, 1359331207, 1568459085, 4077993621, 6796656035, 20389968105]

約数ペア:

[(1, 20389968105), (3, 6796656035), (5, 4077993621), (13, 1568459085), (15, 1359331207), (39, 522819695), (65, 313691817), (195, 104563939), (347, 58760715), (541, 37689405), (557, 36606765), (1041, 19586905), (1623, 12563135), (1671, 12202255), (1735, 11752143), (2705, 7537881), (2785, 7321353), (4511, 4520055), (5205, 3917381), (7033, 2899185), (7241, 2815905), (8115, 2512627), (8355, 2440451), (13533, 1506685), (21099, 966395), (21723, 938635), (22555, 904011), (35165, 579837), (36205, 563181), (67665, 301337), (105495, 193279), (108615, 187727)]