81428060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{599}}^1\times {\mathrm{971}}^1$

素因数の和:1586

約数の個数: 48

約数和(自身を含む): 195955200

約数和(自身を除く): 114527140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 599, 971, 1198, 1942, 2396, 2995, 3884, 4193, 4855, 5990, 6797, 8386, 9710, 11980, 13594, 16772, 19420, 20965, 27188, 33985, 41930, 67970, 83860, 135940, 581629, 1163258, 2326516, 2908145, 4071403, 5816290, 8142806, 11632580, 16285612, 20357015, 40714030, 81428060]

約数ペア:

[(1, 81428060), (2, 40714030), (4, 20357015), (5, 16285612), (7, 11632580), (10, 8142806), (14, 5816290), (20, 4071403), (28, 2908145), (35, 2326516), (70, 1163258), (140, 581629), (599, 135940), (971, 83860), (1198, 67970), (1942, 41930), (2396, 33985), (2995, 27188), (3884, 20965), (4193, 19420), (4855, 16772), (5990, 13594), (6797, 11980), (8386, 9710)]