20843280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28949}}^1$

素因数の和:28968

約数の個数: 60

約数和(自身を含む): 70001100

約数和(自身を除く): 49157820

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28949, 57898, 86847, 115796, 144745, 173694, 231592, 260541, 289490, 347388, 434235, 463184, 521082, 578980, 694776, 868470, 1042164, 1157960, 1302705, 1389552, 1736940, 2084328, 2315920, 2605410, 3473880, 4168656, 5210820, 6947760, 10421640, 20843280]

約数ペア:

[(1, 20843280), (2, 10421640), (3, 6947760), (4, 5210820), (5, 4168656), (6, 3473880), (8, 2605410), (9, 2315920), (10, 2084328), (12, 1736940), (15, 1389552), (16, 1302705), (18, 1157960), (20, 1042164), (24, 868470), (30, 694776), (36, 578980), (40, 521082), (45, 463184), (48, 434235), (60, 347388), (72, 289490), (80, 260541), (90, 231592), (120, 173694), (144, 144745), (180, 115796), (240, 86847), (360, 57898), (720, 28949)]