19817997320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{91733}}^1$

素因数の和:92246

約数の個数: 64

約数和(自身を含む): 48743778240

約数和(自身を除く): 28925780920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 491, 982, 1964, 2455, 3928, 4910, 5401, 9820, 10802, 19640, 21604, 27005, 43208, 54010, 91733, 108020, 183466, 216040, 366932, 458665, 733864, 917330, 1009063, 1834660, 2018126, 3669320, 4036252, 5045315, 8072504, 10090630, 20181260, 40362520, 45040903, 90081806, 180163612, 225204515, 360327224, 450409030, 495449933, 900818060, 990899866, 1801636120, 1981799732, 2477249665, 3963599464, 4954499330, 9908998660, 19817997320]

約数ペア:

[(1, 19817997320), (2, 9908998660), (4, 4954499330), (5, 3963599464), (8, 2477249665), (10, 1981799732), (11, 1801636120), (20, 990899866), (22, 900818060), (40, 495449933), (44, 450409030), (55, 360327224), (88, 225204515), (110, 180163612), (220, 90081806), (440, 45040903), (491, 40362520), (982, 20181260), (1964, 10090630), (2455, 8072504), (3928, 5045315), (4910, 4036252), (5401, 3669320), (9820, 2018126), (10802, 1834660), (19640, 1009063), (21604, 917330), (27005, 733864), (43208, 458665), (54010, 366932), (91733, 216040), (108020, 183466)]