2019920720

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1097783}}^1$

素因数の和:1097819

約数の個数: 40

約数和(自身を含む): 4900507776

約数和(自身を除く): 2880587056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 1097783, 2195566, 4391132, 5488915, 8782264, 10977830, 17564528, 21955660, 25249009, 43911320, 50498018, 87822640, 100996036, 126245045, 201992072, 252490090, 403984144, 504980180, 1009960360, 2019920720]

約数ペア:

[(1, 2019920720), (2, 1009960360), (4, 504980180), (5, 403984144), (8, 252490090), (10, 201992072), (16, 126245045), (20, 100996036), (23, 87822640), (40, 50498018), (46, 43911320), (80, 25249009), (92, 21955660), (115, 17564528), (184, 10977830), (230, 8782264), (368, 5488915), (460, 4391132), (920, 2195566), (1840, 1097783)]