20828220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{491}}^1$

素因数の和:611

約数の個数: 96

約数和(自身を含む): 67447296

約数和(自身を除く): 46619076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 101, 105, 140, 202, 210, 303, 404, 420, 491, 505, 606, 707, 982, 1010, 1212, 1414, 1473, 1515, 1964, 2020, 2121, 2455, 2828, 2946, 3030, 3437, 3535, 4242, 4910, 5892, 6060, 6874, 7070, 7365, 8484, 9820, 10311, 10605, 13748, 14140, 14730, 17185, 20622, 21210, 29460, 34370, 41244, 42420, 49591, 51555, 68740, 99182, 103110, 148773, 198364, 206220, 247955, 297546, 347137, 495910, 595092, 694274, 743865, 991820, 1041411, 1388548, 1487730, 1735685, 2082822, 2975460, 3471370, 4165644, 5207055, 6942740, 10414110, 20828220]

約数ペア:

[(1, 20828220), (2, 10414110), (3, 6942740), (4, 5207055), (5, 4165644), (6, 3471370), (7, 2975460), (10, 2082822), (12, 1735685), (14, 1487730), (15, 1388548), (20, 1041411), (21, 991820), (28, 743865), (30, 694274), (35, 595092), (42, 495910), (60, 347137), (70, 297546), (84, 247955), (101, 206220), (105, 198364), (140, 148773), (202, 103110), (210, 99182), (303, 68740), (404, 51555), (420, 49591), (491, 42420), (505, 41244), (606, 34370), (707, 29460), (982, 21210), (1010, 20622), (1212, 17185), (1414, 14730), (1473, 14140), (1515, 13748), (1964, 10605), (2020, 10311), (2121, 9820), (2455, 8484), (2828, 7365), (2946, 7070), (3030, 6874), (3437, 6060), (3535, 5892), (4242, 4910)]