25978448

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:815

約数の個数: 40

約数和(自身を含む): 53735400

約数和(自身を除く): 27756952

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 596, 641, 1192, 1282, 2384, 2533, 2564, 5066, 5128, 10132, 10256, 10897, 20264, 21794, 40528, 43588, 87176, 95509, 174352, 191018, 382036, 764072, 1528144, 1623653, 3247306, 6494612, 12989224, 25978448]

約数ペア:

[(1, 25978448), (2, 12989224), (4, 6494612), (8, 3247306), (16, 1623653), (17, 1528144), (34, 764072), (68, 382036), (136, 191018), (149, 174352), (272, 95509), (298, 87176), (596, 43588), (641, 40528), (1192, 21794), (1282, 20264), (2384, 10897), (2533, 10256), (2564, 10132), (5066, 5128)]