28778320

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{751}}^1$

素因数の和:1243

約数の個数: 40

約数和(自身を含む): 67138560

約数和(自身を除く): 38360240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 751, 958, 1502, 1916, 2395, 3004, 3755, 3832, 4790, 6008, 7510, 7664, 9580, 12016, 15020, 19160, 30040, 38320, 60080, 359729, 719458, 1438916, 1798645, 2877832, 3597290, 5755664, 7194580, 14389160, 28778320]

約数ペア:

[(1, 28778320), (2, 14389160), (4, 7194580), (5, 5755664), (8, 3597290), (10, 2877832), (16, 1798645), (20, 1438916), (40, 719458), (80, 359729), (479, 60080), (751, 38320), (958, 30040), (1502, 19160), (1916, 15020), (2395, 12016), (3004, 9580), (3755, 7664), (3832, 7510), (4790, 6008)]