20764590

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 128

約数和(自身を含む): 63452160

約数和(自身を除く): 42687570

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 89, 101, 105, 110, 154, 165, 178, 202, 210, 231, 267, 303, 330, 385, 445, 462, 505, 534, 606, 623, 707, 770, 890, 979, 1010, 1111, 1155, 1246, 1335, 1414, 1515, 1869, 1958, 2121, 2222, 2310, 2670, 2937, 3030, 3115, 3333, 3535, 3738, 4242, 4895, 5555, 5874, 6230, 6666, 6853, 7070, 7777, 8989, 9345, 9790, 10605, 11110, 13706, 14685, 15554, 16665, 17978, 18690, 20559, 21210, 23331, 26967, 29370, 33330, 34265, 38885, 41118, 44945, 46662, 53934, 62923, 68530, 77770, 89890, 98879, 102795, 116655, 125846, 134835, 188769, 197758, 205590, 233310, 269670, 296637, 314615, 377538, 494395, 593274, 629230, 692153, 943845, 988790, 1384306, 1483185, 1887690, 2076459, 2966370, 3460765, 4152918, 6921530, 10382295, 20764590]

約数ペア:

[(1, 20764590), (2, 10382295), (3, 6921530), (5, 4152918), (6, 3460765), (7, 2966370), (10, 2076459), (11, 1887690), (14, 1483185), (15, 1384306), (21, 988790), (22, 943845), (30, 692153), (33, 629230), (35, 593274), (42, 494395), (55, 377538), (66, 314615), (70, 296637), (77, 269670), (89, 233310), (101, 205590), (105, 197758), (110, 188769), (154, 134835), (165, 125846), (178, 116655), (202, 102795), (210, 98879), (231, 89890), (267, 77770), (303, 68530), (330, 62923), (385, 53934), (445, 46662), (462, 44945), (505, 41118), (534, 38885), (606, 34265), (623, 33330), (707, 29370), (770, 26967), (890, 23331), (979, 21210), (1010, 20559), (1111, 18690), (1155, 17978), (1246, 16665), (1335, 15554), (1414, 14685), (1515, 13706), (1869, 11110), (1958, 10605), (2121, 9790), (2222, 9345), (2310, 8989), (2670, 7777), (2937, 7070), (3030, 6853), (3115, 6666), (3333, 6230), (3535, 5874), (3738, 5555), (4242, 4895)]