19871860

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11971}}^1$

素因数の和:12063

約数の個数: 24

約数和(自身を含む): 42237216

約数和(自身を除く): 22365356

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11971, 23942, 47884, 59855, 119710, 239420, 993593, 1987186, 3974372, 4967965, 9935930, 19871860]

約数ペア:

[(1, 19871860), (2, 9935930), (4, 4967965), (5, 3974372), (10, 1987186), (20, 993593), (83, 239420), (166, 119710), (332, 59855), (415, 47884), (830, 23942), (1660, 11971)]