20686140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2803}}^1$

素因数の和:2859

約数の個数: 72

約数和(自身を含む): 64301328

約数和(自身を除く): 43615188

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 1230, 1476, 1845, 2460, 2803, 3690, 5606, 7380, 8409, 11212, 14015, 16818, 25227, 28030, 33636, 42045, 50454, 56060, 84090, 100908, 114923, 126135, 168180, 229846, 252270, 344769, 459692, 504540, 574615, 689538, 1034307, 1149230, 1379076, 1723845, 2068614, 2298460, 3447690, 4137228, 5171535, 6895380, 10343070, 20686140]

約数ペア:

[(1, 20686140), (2, 10343070), (3, 6895380), (4, 5171535), (5, 4137228), (6, 3447690), (9, 2298460), (10, 2068614), (12, 1723845), (15, 1379076), (18, 1149230), (20, 1034307), (30, 689538), (36, 574615), (41, 504540), (45, 459692), (60, 344769), (82, 252270), (90, 229846), (123, 168180), (164, 126135), (180, 114923), (205, 100908), (246, 84090), (369, 56060), (410, 50454), (492, 42045), (615, 33636), (738, 28030), (820, 25227), (1230, 16818), (1476, 14015), (1845, 11212), (2460, 8409), (2803, 7380), (3690, 5606)]