25195312

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:761

約数の個数: 40

約数和(自身を含む): 51107840

約数和(自身を除く): 25912528

約数列:

[1, 2, 4, 8, 16, 31, 62, 79, 124, 158, 248, 316, 496, 632, 643, 1264, 1286, 2449, 2572, 4898, 5144, 9796, 10288, 19592, 19933, 39184, 39866, 50797, 79732, 101594, 159464, 203188, 318928, 406376, 812752, 1574707, 3149414, 6298828, 12597656, 25195312]

約数ペア:

[(1, 25195312), (2, 12597656), (4, 6298828), (8, 3149414), (16, 1574707), (31, 812752), (62, 406376), (79, 318928), (124, 203188), (158, 159464), (248, 101594), (316, 79732), (496, 50797), (632, 39866), (643, 39184), (1264, 19933), (1286, 19592), (2449, 10288), (2572, 9796), (4898, 5144)]