2056513520

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{254519}}^1$

素因数の和:254633

約数の個数: 40

約数和(自身を含む): 4828753440

約数和(自身を除く): 2772239920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 254519, 509038, 1018076, 1272595, 2036152, 2545190, 4072304, 5090380, 10180760, 20361520, 25706419, 51412838, 102825676, 128532095, 205651352, 257064190, 411302704, 514128380, 1028256760, 2056513520]

約数ペア:

[(1, 2056513520), (2, 1028256760), (4, 514128380), (5, 411302704), (8, 257064190), (10, 205651352), (16, 128532095), (20, 102825676), (40, 51412838), (80, 25706419), (101, 20361520), (202, 10180760), (404, 5090380), (505, 4072304), (808, 2545190), (1010, 2036152), (1616, 1272595), (2020, 1018076), (4040, 509038), (8080, 254519)]