20121326640

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{3105143}}^1$

素因数の和:3105168

約数の個数: 100

約数和(自身を含む): 69884370864

約数和(自身を除く): 49763044224

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 3105143, 6210286, 9315429, 12420572, 15525715, 18630858, 24841144, 27946287, 31051430, 37261716, 46577145, 49682288, 55892574, 62102860, 74523432, 83838861, 93154290, 111785148, 124205720, 139731435, 149046864, 167677722, 186308580, 223570296, 248411440, 251516583, 279462870, 335355444, 372617160, 419194305, 447140592, 503033166, 558925740, 670710888, 745234320, 838388610, 1006066332, 1117851480, 1257582915, 1341421776, 1676777220, 2012132664, 2235702960, 2515165830, 3353554440, 4024265328, 5030331660, 6707108880, 10060663320, 20121326640]

約数ペア:

[(1, 20121326640), (2, 10060663320), (3, 6707108880), (4, 5030331660), (5, 4024265328), (6, 3353554440), (8, 2515165830), (9, 2235702960), (10, 2012132664), (12, 1676777220), (15, 1341421776), (16, 1257582915), (18, 1117851480), (20, 1006066332), (24, 838388610), (27, 745234320), (30, 670710888), (36, 558925740), (40, 503033166), (45, 447140592), (48, 419194305), (54, 372617160), (60, 335355444), (72, 279462870), (80, 251516583), (81, 248411440), (90, 223570296), (108, 186308580), (120, 167677722), (135, 149046864), (144, 139731435), (162, 124205720), (180, 111785148), (216, 93154290), (240, 83838861), (270, 74523432), (324, 62102860), (360, 55892574), (405, 49682288), (432, 46577145), (540, 37261716), (648, 31051430), (720, 27946287), (810, 24841144), (1080, 18630858), (1296, 15525715), (1620, 12420572), (2160, 9315429), (3240, 6210286), (6480, 3105143)]