42720640

素因数分解:

$2^7\times 5^1\times {\mathrm{66751}}^1$

素因数の和:66770

約数の個数: 32

約数和(自身を含む): 102130560

約数和(自身を除く): 59409920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 66751, 133502, 267004, 333755, 534008, 667510, 1068016, 1335020, 2136032, 2670040, 4272064, 5340080, 8544128, 10680160, 21360320, 42720640]

約数ペア:

[(1, 42720640), (2, 21360320), (4, 10680160), (5, 8544128), (8, 5340080), (10, 4272064), (16, 2670040), (20, 2136032), (32, 1335020), (40, 1068016), (64, 667510), (80, 534008), (128, 333755), (160, 267004), (320, 133502), (640, 66751)]