281120

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{251}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 762048

約数和(自身を除く): 480928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 251, 280, 502, 560, 1004, 1120, 1255, 1757, 2008, 2510, 3514, 4016, 5020, 7028, 8032, 8785, 10040, 14056, 17570, 20080, 28112, 35140, 40160, 56224, 70280, 140560, 281120]

約数ペア:

[(1, 281120), (2, 140560), (4, 70280), (5, 56224), (7, 40160), (8, 35140), (10, 28112), (14, 20080), (16, 17570), (20, 14056), (28, 10040), (32, 8785), (35, 8032), (40, 7028), (56, 5020), (70, 4016), (80, 3514), (112, 2510), (140, 2008), (160, 1757), (224, 1255), (251, 1120), (280, 1004), (502, 560)]