165810640

素因数分解:

$2^4\times 5^1\times {\mathrm{479}}^1\times {\mathrm{4327}}^1$

素因数の和:4819

約数の個数: 40

約数和(自身を含む): 386403840

約数和(自身を除く): 220593200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 479, 958, 1916, 2395, 3832, 4327, 4790, 7664, 8654, 9580, 17308, 19160, 21635, 34616, 38320, 43270, 69232, 86540, 173080, 346160, 2072633, 4145266, 8290532, 10363165, 16581064, 20726330, 33162128, 41452660, 82905320, 165810640]

約数ペア:

[(1, 165810640), (2, 82905320), (4, 41452660), (5, 33162128), (8, 20726330), (10, 16581064), (16, 10363165), (20, 8290532), (40, 4145266), (80, 2072633), (479, 346160), (958, 173080), (1916, 86540), (2395, 69232), (3832, 43270), (4327, 38320), (4790, 34616), (7664, 21635), (8654, 19160), (9580, 17308)]