83620420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{321617}}^1$

素因数の和:321639

約数の個数: 24

約数和(自身を含む): 189111384

約数和(自身を除く): 105490964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 321617, 643234, 1286468, 1608085, 3216170, 4181021, 6432340, 8362042, 16724084, 20905105, 41810210, 83620420]

約数ペア:

[(1, 83620420), (2, 41810210), (4, 20905105), (5, 16724084), (10, 8362042), (13, 6432340), (20, 4181021), (26, 3216170), (52, 1608085), (65, 1286468), (130, 643234), (260, 321617)]