20657160

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:668

約数の個数: 128

約数和(自身を含む): 71193600

約数和(自身を除く): 50536440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 90, 93, 108, 120, 124, 135, 155, 180, 186, 216, 248, 270, 279, 310, 360, 372, 465, 540, 558, 617, 620, 744, 837, 930, 1080, 1116, 1234, 1240, 1395, 1674, 1851, 1860, 2232, 2468, 2790, 3085, 3348, 3702, 3720, 4185, 4936, 5553, 5580, 6170, 6696, 7404, 8370, 9255, 11106, 11160, 12340, 14808, 16659, 16740, 18510, 19127, 22212, 24680, 27765, 33318, 33480, 37020, 38254, 44424, 55530, 57381, 66636, 74040, 76508, 83295, 95635, 111060, 114762, 133272, 153016, 166590, 172143, 191270, 222120, 229524, 286905, 333180, 344286, 382540, 459048, 516429, 573810, 666360, 688572, 765080, 860715, 1032858, 1147620, 1377144, 1721430, 2065716, 2295240, 2582145, 3442860, 4131432, 5164290, 6885720, 10328580, 20657160]

約数ペア:

[(1, 20657160), (2, 10328580), (3, 6885720), (4, 5164290), (5, 4131432), (6, 3442860), (8, 2582145), (9, 2295240), (10, 2065716), (12, 1721430), (15, 1377144), (18, 1147620), (20, 1032858), (24, 860715), (27, 765080), (30, 688572), (31, 666360), (36, 573810), (40, 516429), (45, 459048), (54, 382540), (60, 344286), (62, 333180), (72, 286905), (90, 229524), (93, 222120), (108, 191270), (120, 172143), (124, 166590), (135, 153016), (155, 133272), (180, 114762), (186, 111060), (216, 95635), (248, 83295), (270, 76508), (279, 74040), (310, 66636), (360, 57381), (372, 55530), (465, 44424), (540, 38254), (558, 37020), (617, 33480), (620, 33318), (744, 27765), (837, 24680), (930, 22212), (1080, 19127), (1116, 18510), (1234, 16740), (1240, 16659), (1395, 14808), (1674, 12340), (1851, 11160), (1860, 11106), (2232, 9255), (2468, 8370), (2790, 7404), (3085, 6696), (3348, 6170), (3702, 5580), (3720, 5553), (4185, 4936)]