25187840

素因数分解:

$2^9\times 5^1\times {\mathrm{9839}}^1$

素因数の和:9862

約数の個数: 40

約数和(自身を含む): 60397920

約数和(自身を除く): 35210080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 9839, 19678, 39356, 49195, 78712, 98390, 157424, 196780, 314848, 393560, 629696, 787120, 1259392, 1574240, 2518784, 3148480, 5037568, 6296960, 12593920, 25187840]

約数ペア:

[(1, 25187840), (2, 12593920), (4, 6296960), (5, 5037568), (8, 3148480), (10, 2518784), (16, 1574240), (20, 1259392), (32, 787120), (40, 629696), (64, 393560), (80, 314848), (128, 196780), (160, 157424), (256, 98390), (320, 78712), (512, 49195), (640, 39356), (1280, 19678), (2560, 9839)]