77985720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{443}}^1$

素因数の和:626

約数の個数: 128

約数和(自身を含む): 262137600

約数和(自身を除く): 184151880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 163, 180, 216, 270, 326, 360, 443, 489, 540, 652, 815, 886, 978, 1080, 1304, 1329, 1467, 1630, 1772, 1956, 2215, 2445, 2658, 2934, 3260, 3544, 3912, 3987, 4401, 4430, 4890, 5316, 5868, 6520, 6645, 7335, 7974, 8802, 8860, 9780, 10632, 11736, 11961, 13290, 14670, 15948, 17604, 17720, 19560, 19935, 22005, 23922, 26580, 29340, 31896, 35208, 39870, 44010, 47844, 53160, 58680, 59805, 72209, 79740, 88020, 95688, 119610, 144418, 159480, 176040, 216627, 239220, 288836, 361045, 433254, 478440, 577672, 649881, 722090, 866508, 1083135, 1299762, 1444180, 1733016, 1949643, 2166270, 2599524, 2888360, 3249405, 3899286, 4332540, 5199048, 6498810, 7798572, 8665080, 9748215, 12997620, 15597144, 19496430, 25995240, 38992860, 77985720]

約数ペア:

[(1, 77985720), (2, 38992860), (3, 25995240), (4, 19496430), (5, 15597144), (6, 12997620), (8, 9748215), (9, 8665080), (10, 7798572), (12, 6498810), (15, 5199048), (18, 4332540), (20, 3899286), (24, 3249405), (27, 2888360), (30, 2599524), (36, 2166270), (40, 1949643), (45, 1733016), (54, 1444180), (60, 1299762), (72, 1083135), (90, 866508), (108, 722090), (120, 649881), (135, 577672), (163, 478440), (180, 433254), (216, 361045), (270, 288836), (326, 239220), (360, 216627), (443, 176040), (489, 159480), (540, 144418), (652, 119610), (815, 95688), (886, 88020), (978, 79740), (1080, 72209), (1304, 59805), (1329, 58680), (1467, 53160), (1630, 47844), (1772, 44010), (1956, 39870), (2215, 35208), (2445, 31896), (2658, 29340), (2934, 26580), (3260, 23922), (3544, 22005), (3912, 19935), (3987, 19560), (4401, 17720), (4430, 17604), (4890, 15948), (5316, 14670), (5868, 13290), (6520, 11961), (6645, 11736), (7335, 10632), (7974, 9780), (8802, 8860)]