19736420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{317}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 45517248

約数和(自身を除く): 25780828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 283, 317, 566, 634, 1132, 1268, 1415, 1585, 2830, 3113, 3170, 3487, 5660, 6226, 6340, 6974, 12452, 13948, 15565, 17435, 31130, 34870, 62260, 69740, 89711, 179422, 358844, 448555, 897110, 986821, 1794220, 1973642, 3947284, 4934105, 9868210, 19736420]

約数ペア:

[(1, 19736420), (2, 9868210), (4, 4934105), (5, 3947284), (10, 1973642), (11, 1794220), (20, 986821), (22, 897110), (44, 448555), (55, 358844), (110, 179422), (220, 89711), (283, 69740), (317, 62260), (566, 34870), (634, 31130), (1132, 17435), (1268, 15565), (1415, 13948), (1585, 12452), (2830, 6974), (3113, 6340), (3170, 6226), (3487, 5660)]