1638072720

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{84263}}^1$

素因数の和:84291

約数の個数: 120

約数和(自身を含む): 5705009856

約数和(自身を除く): 4066937136

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, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1620, 1944, 2160, 2430, 3240, 3888, 4860, 6480, 9720, 19440, 84263, 168526, 252789, 337052, 421315, 505578, 674104, 758367, 842630, 1011156, 1263945, 1348208, 1516734, 1685260, 2022312, 2275101, 2527890, 3033468, 3370520, 3791835, 4044624, 4550202, 5055780, 6066936, 6741040, 6825303, 7583670, 9100404, 10111560, 11375505, 12133872, 13650606, 15167340, 18200808, 20223120, 20475909, 22751010, 27301212, 30334680, 34126515, 36401616, 40951818, 45502020, 54602424, 60669360, 68253030, 81903636, 91004040, 102379545, 109204848, 136506060, 163807272, 182008080, 204759090, 273012120, 327614544, 409518180, 546024240, 819036360, 1638072720]

約数ペア:

[(1, 1638072720), (2, 819036360), (3, 546024240), (4, 409518180), (5, 327614544), (6, 273012120), (8, 204759090), (9, 182008080), (10, 163807272), (12, 136506060), (15, 109204848), (16, 102379545), (18, 91004040), (20, 81903636), (24, 68253030), (27, 60669360), (30, 54602424), (36, 45502020), (40, 40951818), (45, 36401616), (48, 34126515), (54, 30334680), (60, 27301212), (72, 22751010), (80, 20475909), (81, 20223120), (90, 18200808), (108, 15167340), (120, 13650606), (135, 12133872), (144, 11375505), (162, 10111560), (180, 9100404), (216, 7583670), (240, 6825303), (243, 6741040), (270, 6066936), (324, 5055780), (360, 4550202), (405, 4044624), (432, 3791835), (486, 3370520), (540, 3033468), (648, 2527890), (720, 2275101), (810, 2022312), (972, 1685260), (1080, 1516734), (1215, 1348208), (1296, 1263945), (1620, 1011156), (1944, 842630), (2160, 758367), (2430, 674104), (3240, 505578), (3888, 421315), (4860, 337052), (6480, 252789), (9720, 168526), (19440, 84263)]