27477860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 59875200

約数和(自身を除く): 32397340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 89, 172, 178, 215, 356, 359, 430, 445, 718, 860, 890, 1436, 1780, 1795, 3590, 3827, 7180, 7654, 15308, 15437, 19135, 30874, 31951, 38270, 61748, 63902, 76540, 77185, 127804, 154370, 159755, 308740, 319510, 639020, 1373893, 2747786, 5495572, 6869465, 13738930, 27477860]

約数ペア:

[(1, 27477860), (2, 13738930), (4, 6869465), (5, 5495572), (10, 2747786), (20, 1373893), (43, 639020), (86, 319510), (89, 308740), (172, 159755), (178, 154370), (215, 127804), (356, 77185), (359, 76540), (430, 63902), (445, 61748), (718, 38270), (860, 31951), (890, 30874), (1436, 19135), (1780, 15437), (1795, 15308), (3590, 7654), (3827, 7180)]