20984670

素因数分解:

$2^1\times 3^4\times 5^1\times 7^1\times {\mathrm{3701}}^1$

素因数の和:3727

約数の個数: 80

約数和(自身を含む): 64503648

約数和(自身を除く): 43518978

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 81, 90, 105, 126, 135, 162, 189, 210, 270, 315, 378, 405, 567, 630, 810, 945, 1134, 1890, 2835, 3701, 5670, 7402, 11103, 18505, 22206, 25907, 33309, 37010, 51814, 55515, 66618, 77721, 99927, 111030, 129535, 155442, 166545, 199854, 233163, 259070, 299781, 333090, 388605, 466326, 499635, 599562, 699489, 777210, 999270, 1165815, 1398978, 1498905, 2098467, 2331630, 2997810, 3497445, 4196934, 6994890, 10492335, 20984670]

約数ペア:

[(1, 20984670), (2, 10492335), (3, 6994890), (5, 4196934), (6, 3497445), (7, 2997810), (9, 2331630), (10, 2098467), (14, 1498905), (15, 1398978), (18, 1165815), (21, 999270), (27, 777210), (30, 699489), (35, 599562), (42, 499635), (45, 466326), (54, 388605), (63, 333090), (70, 299781), (81, 259070), (90, 233163), (105, 199854), (126, 166545), (135, 155442), (162, 129535), (189, 111030), (210, 99927), (270, 77721), (315, 66618), (378, 55515), (405, 51814), (567, 37010), (630, 33309), (810, 25907), (945, 22206), (1134, 18505), (1890, 11103), (2835, 7402), (3701, 5670)]