81239570

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{97879}}^1$

素因数の和:97969

約数の個数: 16

約数和(自身を含む): 147994560

約数和(自身を除く): 66754990

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 97879, 195758, 489395, 978790, 8123957, 16247914, 40619785, 81239570]

約数ペア:

[(1, 81239570), (2, 40619785), (5, 16247914), (10, 8123957), (83, 978790), (166, 489395), (415, 195758), (830, 97879)]