19771120

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4663}}^1$

素因数の和:4729

約数の個数: 40

約数和(自身を含む): 46845216

約数和(自身を除く): 27074096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4663, 9326, 18652, 23315, 37304, 46630, 74608, 93260, 186520, 247139, 373040, 494278, 988556, 1235695, 1977112, 2471390, 3954224, 4942780, 9885560, 19771120]

約数ペア:

[(1, 19771120), (2, 9885560), (4, 4942780), (5, 3954224), (8, 2471390), (10, 1977112), (16, 1235695), (20, 988556), (40, 494278), (53, 373040), (80, 247139), (106, 186520), (212, 93260), (265, 74608), (424, 46630), (530, 37304), (848, 23315), (1060, 18652), (2120, 9326), (4240, 4663)]