66458540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{81047}}^1$

素因数の和:81097

約数の個数: 24

約数和(自身を含む): 142968672

約数和(自身を除く): 76510132

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 81047, 162094, 324188, 405235, 810470, 1620940, 3322927, 6645854, 13291708, 16614635, 33229270, 66458540]

約数ペア:

[(1, 66458540), (2, 33229270), (4, 16614635), (5, 13291708), (10, 6645854), (20, 3322927), (41, 1620940), (82, 810470), (164, 405235), (205, 324188), (410, 162094), (820, 81047)]