20959560

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6469}}^1$

素因数の和:6492

約数の個数: 80

約数和(自身を含む): 70458300

約数和(自身を除く): 49498740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6469, 12938, 19407, 25876, 32345, 38814, 51752, 58221, 64690, 77628, 97035, 116442, 129380, 155256, 174663, 194070, 232884, 258760, 291105, 349326, 388140, 465768, 523989, 582210, 698652, 776280, 873315, 1047978, 1164420, 1397304, 1746630, 2095956, 2328840, 2619945, 3493260, 4191912, 5239890, 6986520, 10479780, 20959560]

約数ペア:

[(1, 20959560), (2, 10479780), (3, 6986520), (4, 5239890), (5, 4191912), (6, 3493260), (8, 2619945), (9, 2328840), (10, 2095956), (12, 1746630), (15, 1397304), (18, 1164420), (20, 1047978), (24, 873315), (27, 776280), (30, 698652), (36, 582210), (40, 523989), (45, 465768), (54, 388140), (60, 349326), (72, 291105), (81, 258760), (90, 232884), (108, 194070), (120, 174663), (135, 155256), (162, 129380), (180, 116442), (216, 97035), (270, 77628), (324, 64690), (360, 58221), (405, 51752), (540, 38814), (648, 32345), (810, 25876), (1080, 19407), (1620, 12938), (3240, 6469)]