209943810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{21401}}^1$

素因数の和:21523

約数の個数: 48

約数和(自身を含む): 550887480

約数和(自身を除く): 340943670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 3270, 4905, 9810, 21401, 42802, 64203, 107005, 128406, 192609, 214010, 321015, 385218, 642030, 963045, 1926090, 2332709, 4665418, 6998127, 11663545, 13996254, 20994381, 23327090, 34990635, 41988762, 69981270, 104971905, 209943810]

約数ペア:

[(1, 209943810), (2, 104971905), (3, 69981270), (5, 41988762), (6, 34990635), (9, 23327090), (10, 20994381), (15, 13996254), (18, 11663545), (30, 6998127), (45, 4665418), (90, 2332709), (109, 1926090), (218, 963045), (327, 642030), (545, 385218), (654, 321015), (981, 214010), (1090, 192609), (1635, 128406), (1962, 107005), (3270, 64203), (4905, 42802), (9810, 21401)]