25680640

素因数分解:

$2^8\times 5^1\times {\mathrm{20063}}^1$

素因数の和:20084

約数の個数: 36

約数和(自身を含む): 61516224

約数和(自身を除く): 35835584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 20063, 40126, 80252, 100315, 160504, 200630, 321008, 401260, 642016, 802520, 1284032, 1605040, 2568064, 3210080, 5136128, 6420160, 12840320, 25680640]

約数ペア:

[(1, 25680640), (2, 12840320), (4, 6420160), (5, 5136128), (8, 3210080), (10, 2568064), (16, 1605040), (20, 1284032), (32, 802520), (40, 642016), (64, 401260), (80, 321008), (128, 200630), (160, 160504), (256, 100315), (320, 80252), (640, 40126), (1280, 20063)]