20387940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{339799}}^1$

素因数の和:339811

約数の個数: 24

約数和(自身を含む): 57086400

約数和(自身を除く): 36698460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 339799, 679598, 1019397, 1359196, 1698995, 2038794, 3397990, 4077588, 5096985, 6795980, 10193970, 20387940]

約数ペア:

[(1, 20387940), (2, 10193970), (3, 6795980), (4, 5096985), (5, 4077588), (6, 3397990), (10, 2038794), (12, 1698995), (15, 1359196), (20, 1019397), (30, 679598), (60, 339799)]