25746740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 30669004

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 317, 524, 620, 634, 655, 1268, 1310, 1585, 2620, 3170, 4061, 6340, 8122, 9827, 16244, 19654, 20305, 39308, 40610, 41527, 49135, 81220, 83054, 98270, 166108, 196540, 207635, 415270, 830540, 1287337, 2574674, 5149348, 6436685, 12873370, 25746740]

約数ペア:

[(1, 25746740), (2, 12873370), (4, 6436685), (5, 5149348), (10, 2574674), (20, 1287337), (31, 830540), (62, 415270), (124, 207635), (131, 196540), (155, 166108), (262, 98270), (310, 83054), (317, 81220), (524, 49135), (620, 41527), (634, 40610), (655, 39308), (1268, 20305), (1310, 19654), (1585, 16244), (2620, 9827), (3170, 8122), (4061, 6340)]