66421580

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{40013}}^1$

素因数の和:40105

約数の個数: 24

約数和(自身を含む): 141169392

約数和(自身を除く): 74747812

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 40013, 80026, 160052, 200065, 400130, 800260, 3321079, 6642158, 13284316, 16605395, 33210790, 66421580]

約数ペア:

[(1, 66421580), (2, 33210790), (4, 16605395), (5, 13284316), (10, 6642158), (20, 3321079), (83, 800260), (166, 400130), (332, 200065), (415, 160052), (830, 80026), (1660, 40013)]