51572620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 120791664

約数和(自身を除く): 69219044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 121, 202, 211, 220, 242, 404, 422, 484, 505, 605, 844, 1010, 1055, 1111, 1210, 2020, 2110, 2222, 2321, 2420, 4220, 4444, 4642, 5555, 9284, 11110, 11605, 12221, 21311, 22220, 23210, 24442, 25531, 42622, 46420, 48884, 51062, 61105, 85244, 102124, 106555, 122210, 127655, 213110, 234421, 244420, 255310, 426220, 468842, 510620, 937684, 1172105, 2344210, 2578631, 4688420, 5157262, 10314524, 12893155, 25786310, 51572620]

約数ペア:

[(1, 51572620), (2, 25786310), (4, 12893155), (5, 10314524), (10, 5157262), (11, 4688420), (20, 2578631), (22, 2344210), (44, 1172105), (55, 937684), (101, 510620), (110, 468842), (121, 426220), (202, 255310), (211, 244420), (220, 234421), (242, 213110), (404, 127655), (422, 122210), (484, 106555), (505, 102124), (605, 85244), (844, 61105), (1010, 51062), (1055, 48884), (1111, 46420), (1210, 42622), (2020, 25531), (2110, 24442), (2222, 23210), (2321, 22220), (2420, 21311), (4220, 12221), (4444, 11605), (4642, 11110), (5555, 9284)]