20964420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{12941}}^1$

素因数の和:12962

約数の個数: 60

約数和(自身を含む): 65771244

約数和(自身を除く): 44806824

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 12941, 25882, 38823, 51764, 64705, 77646, 116469, 129410, 155292, 194115, 232938, 258820, 349407, 388230, 465876, 582345, 698814, 776460, 1048221, 1164690, 1397628, 1747035, 2096442, 2329380, 3494070, 4192884, 5241105, 6988140, 10482210, 20964420]

約数ペア:

[(1, 20964420), (2, 10482210), (3, 6988140), (4, 5241105), (5, 4192884), (6, 3494070), (9, 2329380), (10, 2096442), (12, 1747035), (15, 1397628), (18, 1164690), (20, 1048221), (27, 776460), (30, 698814), (36, 582345), (45, 465876), (54, 388230), (60, 349407), (81, 258820), (90, 232938), (108, 194115), (135, 155292), (162, 129410), (180, 116469), (270, 77646), (324, 64705), (405, 51764), (540, 38823), (810, 25882), (1620, 12941)]