25643140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{379}}^1$

素因数の和:604

約数の個数: 48

約数和(自身を含む): 57456000

約数和(自身を除く): 31812860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 379, 398, 758, 796, 995, 1516, 1895, 1990, 3383, 3790, 3980, 6443, 6766, 7580, 12886, 13532, 16915, 25772, 32215, 33830, 64430, 67660, 75421, 128860, 150842, 301684, 377105, 754210, 1282157, 1508420, 2564314, 5128628, 6410785, 12821570, 25643140]

約数ペア:

[(1, 25643140), (2, 12821570), (4, 6410785), (5, 5128628), (10, 2564314), (17, 1508420), (20, 1282157), (34, 754210), (68, 377105), (85, 301684), (170, 150842), (199, 128860), (340, 75421), (379, 67660), (398, 64430), (758, 33830), (796, 32215), (995, 25772), (1516, 16915), (1895, 13532), (1990, 12886), (3383, 7580), (3790, 6766), (3980, 6443)]