20100301640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1\times {\mathrm{14533}}^1$

素因数の和:15102

約数の個数: 64

約数和(自身を含む): 45959996160

約数和(自身を除く): 25859694520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 487, 568, 710, 974, 1420, 1948, 2435, 2840, 3896, 4870, 9740, 14533, 19480, 29066, 34577, 58132, 69154, 72665, 116264, 138308, 145330, 172885, 276616, 290660, 345770, 581320, 691540, 1031843, 1383080, 2063686, 4127372, 5159215, 7077571, 8254744, 10318430, 14155142, 20636860, 28310284, 35387855, 41273720, 56620568, 70775710, 141551420, 283102840, 502507541, 1005015082, 2010030164, 2512537705, 4020060328, 5025075410, 10050150820, 20100301640]

約数ペア:

[(1, 20100301640), (2, 10050150820), (4, 5025075410), (5, 4020060328), (8, 2512537705), (10, 2010030164), (20, 1005015082), (40, 502507541), (71, 283102840), (142, 141551420), (284, 70775710), (355, 56620568), (487, 41273720), (568, 35387855), (710, 28310284), (974, 20636860), (1420, 14155142), (1948, 10318430), (2435, 8254744), (2840, 7077571), (3896, 5159215), (4870, 4127372), (9740, 2063686), (14533, 1383080), (19480, 1031843), (29066, 691540), (34577, 581320), (58132, 345770), (69154, 290660), (72665, 276616), (116264, 172885), (138308, 145330)]