71140520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{161683}}^1$

素因数の和:161705

約数の個数: 32

約数和(自身を含む): 174618720

約数和(自身を除く): 103478200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 161683, 323366, 646732, 808415, 1293464, 1616830, 1778513, 3233660, 3557026, 6467320, 7114052, 8892565, 14228104, 17785130, 35570260, 71140520]

約数ペア:

[(1, 71140520), (2, 35570260), (4, 17785130), (5, 14228104), (8, 8892565), (10, 7114052), (11, 6467320), (20, 3557026), (22, 3233660), (40, 1778513), (44, 1616830), (55, 1293464), (88, 808415), (110, 646732), (220, 323366), (440, 161683)]