20619780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1223}}^1$

素因数の和:1516

約数の個数: 48

約数和(自身を含む): 57988224

約数和(自身を除く): 37368444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1223, 1405, 1686, 2446, 2810, 3372, 3669, 4215, 4892, 5620, 6115, 7338, 8430, 12230, 14676, 16860, 18345, 24460, 36690, 73380, 343663, 687326, 1030989, 1374652, 1718315, 2061978, 3436630, 4123956, 5154945, 6873260, 10309890, 20619780]

約数ペア:

[(1, 20619780), (2, 10309890), (3, 6873260), (4, 5154945), (5, 4123956), (6, 3436630), (10, 2061978), (12, 1718315), (15, 1374652), (20, 1030989), (30, 687326), (60, 343663), (281, 73380), (562, 36690), (843, 24460), (1124, 18345), (1223, 16860), (1405, 14676), (1686, 12230), (2446, 8430), (2810, 7338), (3372, 6115), (3669, 5620), (4215, 4892)]