25281280

素因数分解:

$2^8\times 5^1\times {\mathrm{19751}}^1$

素因数の和:19772

約数の個数: 36

約数和(自身を含む): 60559632

約数和(自身を除く): 35278352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 19751, 39502, 79004, 98755, 158008, 197510, 316016, 395020, 632032, 790040, 1264064, 1580080, 2528128, 3160160, 5056256, 6320320, 12640640, 25281280]

約数ペア:

[(1, 25281280), (2, 12640640), (4, 6320320), (5, 5056256), (8, 3160160), (10, 2528128), (16, 1580080), (20, 1264064), (32, 790040), (40, 632032), (64, 395020), (80, 316016), (128, 197510), (160, 158008), (256, 98755), (320, 79004), (640, 39502), (1280, 19751)]