19675620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 60049080

約数和(自身を除く): 40373460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 389, 562, 778, 843, 1124, 1167, 1405, 1556, 1686, 1945, 2334, 2529, 2810, 3372, 3501, 3890, 4215, 4668, 5058, 5620, 5835, 7002, 7780, 8430, 10116, 11670, 12645, 14004, 16860, 17505, 23340, 25290, 35010, 50580, 70020, 109309, 218618, 327927, 437236, 546545, 655854, 983781, 1093090, 1311708, 1639635, 1967562, 2186180, 3279270, 3935124, 4918905, 6558540, 9837810, 19675620]

約数ペア:

[(1, 19675620), (2, 9837810), (3, 6558540), (4, 4918905), (5, 3935124), (6, 3279270), (9, 2186180), (10, 1967562), (12, 1639635), (15, 1311708), (18, 1093090), (20, 983781), (30, 655854), (36, 546545), (45, 437236), (60, 327927), (90, 218618), (180, 109309), (281, 70020), (389, 50580), (562, 35010), (778, 25290), (843, 23340), (1124, 17505), (1167, 16860), (1405, 14004), (1556, 12645), (1686, 11670), (1945, 10116), (2334, 8430), (2529, 7780), (2810, 7002), (3372, 5835), (3501, 5620), (3890, 5058), (4215, 4668)]