25804090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 54512640

約数和(自身を除く): 28708550

約数列:

[1, 2, 5, 10, 13, 19, 26, 31, 38, 62, 65, 95, 130, 155, 190, 247, 310, 337, 403, 494, 589, 674, 806, 1178, 1235, 1685, 2015, 2470, 2945, 3370, 4030, 4381, 5890, 6403, 7657, 8762, 10447, 12806, 15314, 20894, 21905, 32015, 38285, 43810, 52235, 64030, 76570, 83239, 104470, 135811, 166478, 198493, 271622, 396986, 416195, 679055, 832390, 992465, 1358110, 1984930, 2580409, 5160818, 12902045, 25804090]

約数ペア:

[(1, 25804090), (2, 12902045), (5, 5160818), (10, 2580409), (13, 1984930), (19, 1358110), (26, 992465), (31, 832390), (38, 679055), (62, 416195), (65, 396986), (95, 271622), (130, 198493), (155, 166478), (190, 135811), (247, 104470), (310, 83239), (337, 76570), (403, 64030), (494, 52235), (589, 43810), (674, 38285), (806, 32015), (1178, 21905), (1235, 20894), (1685, 15314), (2015, 12806), (2470, 10447), (2945, 8762), (3370, 7657), (4030, 6403), (4381, 5890)]