87118120

素因数分解:

$2^3\times 5^1\times {\mathrm{971}}^1\times {\mathrm{2243}}^1$

素因数の和:3225

約数の個数: 32

約数和(自身を含む): 196305120

約数和(自身を除く): 109187000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 971, 1942, 2243, 3884, 4486, 4855, 7768, 8972, 9710, 11215, 17944, 19420, 22430, 38840, 44860, 89720, 2177953, 4355906, 8711812, 10889765, 17423624, 21779530, 43559060, 87118120]

約数ペア:

[(1, 87118120), (2, 43559060), (4, 21779530), (5, 17423624), (8, 10889765), (10, 8711812), (20, 4355906), (40, 2177953), (971, 89720), (1942, 44860), (2243, 38840), (3884, 22430), (4486, 19420), (4855, 17944), (7768, 11215), (8972, 9710)]