42380420

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7541}}^1$

素因数の和:7831

約数の個数: 24

約数和(自身を含む): 89327448

約数和(自身を除く): 46947028

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 7541, 15082, 30164, 37705, 75410, 150820, 2119021, 4238042, 8476084, 10595105, 21190210, 42380420]

約数ペア:

[(1, 42380420), (2, 21190210), (4, 10595105), (5, 8476084), (10, 4238042), (20, 2119021), (281, 150820), (562, 75410), (1124, 37705), (1405, 30164), (2810, 15082), (5620, 7541)]