91400980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{211}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 213161760

約数和(自身を除く): 121760780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 179, 211, 220, 242, 358, 422, 484, 605, 716, 844, 895, 1055, 1210, 1790, 1969, 2110, 2321, 2420, 3580, 3938, 4220, 4642, 7876, 9284, 9845, 11605, 19690, 21659, 23210, 25531, 37769, 39380, 43318, 46420, 51062, 75538, 86636, 102124, 108295, 127655, 151076, 188845, 216590, 255310, 377690, 415459, 433180, 510620, 755380, 830918, 1661836, 2077295, 4154590, 4570049, 8309180, 9140098, 18280196, 22850245, 45700490, 91400980]

約数ペア:

[(1, 91400980), (2, 45700490), (4, 22850245), (5, 18280196), (10, 9140098), (11, 8309180), (20, 4570049), (22, 4154590), (44, 2077295), (55, 1661836), (110, 830918), (121, 755380), (179, 510620), (211, 433180), (220, 415459), (242, 377690), (358, 255310), (422, 216590), (484, 188845), (605, 151076), (716, 127655), (844, 108295), (895, 102124), (1055, 86636), (1210, 75538), (1790, 51062), (1969, 46420), (2110, 43318), (2321, 39380), (2420, 37769), (3580, 25531), (3938, 23210), (4220, 21659), (4642, 19690), (7876, 11605), (9284, 9845)]