248565520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{443867}}^1$

素因数の和:443887

約数の個数: 40

約数和(自身を含む): 660475584

約数和(自身を除く): 411910064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 443867, 887734, 1775468, 2219335, 3107069, 3550936, 4438670, 6214138, 7101872, 8877340, 12428276, 15535345, 17754680, 24856552, 31070690, 35509360, 49713104, 62141380, 124282760, 248565520]

約数ペア:

[(1, 248565520), (2, 124282760), (4, 62141380), (5, 49713104), (7, 35509360), (8, 31070690), (10, 24856552), (14, 17754680), (16, 15535345), (20, 12428276), (28, 8877340), (35, 7101872), (40, 6214138), (56, 4438670), (70, 3550936), (80, 3107069), (112, 2219335), (140, 1775468), (280, 887734), (560, 443867)]