20724702928

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{1747}}^1\times {\mathrm{8933}}^1$

素因数の和:10771

約数の個数: 40

約数和(自身を含む): 40665709728

約数和(自身を除く): 19941006800

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 1747, 3494, 6988, 8933, 13976, 17866, 27952, 35732, 71464, 142928, 145001, 290002, 580004, 741439, 1160008, 1482878, 2320016, 2965756, 5931512, 11863024, 15605951, 31211902, 62423804, 124847608, 249695216, 1295293933, 2590587866, 5181175732, 10362351464, 20724702928]

約数ペア:

[(1, 20724702928), (2, 10362351464), (4, 5181175732), (8, 2590587866), (16, 1295293933), (83, 249695216), (166, 124847608), (332, 62423804), (664, 31211902), (1328, 15605951), (1747, 11863024), (3494, 5931512), (6988, 2965756), (8933, 2320016), (13976, 1482878), (17866, 1160008), (27952, 741439), (35732, 580004), (71464, 290002), (142928, 145001)]