82172740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{997}}^1$

素因数の和:1336

約数の個数: 48

約数和(自身を含む): 186610032

約数和(自身を除く): 104437292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 634, 997, 1268, 1585, 1994, 3170, 3988, 4121, 4985, 6340, 8242, 9970, 12961, 16484, 19940, 20605, 25922, 41210, 51844, 64805, 82420, 129610, 259220, 316049, 632098, 1264196, 1580245, 3160490, 4108637, 6320980, 8217274, 16434548, 20543185, 41086370, 82172740]

約数ペア:

[(1, 82172740), (2, 41086370), (4, 20543185), (5, 16434548), (10, 8217274), (13, 6320980), (20, 4108637), (26, 3160490), (52, 1580245), (65, 1264196), (130, 632098), (260, 316049), (317, 259220), (634, 129610), (997, 82420), (1268, 64805), (1585, 51844), (1994, 41210), (3170, 25922), (3988, 20605), (4121, 19940), (4985, 16484), (6340, 12961), (8242, 9970)]