20153452808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{28591}}^1$

素因数の和:28758

約数の個数: 64

約数和(自身を含む): 41131307520

約数和(自身を除く): 20977854712

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 73, 136, 142, 146, 284, 292, 568, 584, 1207, 1241, 2414, 2482, 4828, 4964, 5183, 9656, 9928, 10366, 20732, 28591, 41464, 57182, 88111, 114364, 176222, 228728, 352444, 486047, 704888, 972094, 1944188, 2029961, 2087143, 3888376, 4059922, 4174286, 8119844, 8348572, 16239688, 16697144, 34509337, 35481431, 69018674, 70962862, 138037348, 141925724, 148187153, 276074696, 283851448, 296374306, 592748612, 1185497224, 2519181601, 5038363202, 10076726404, 20153452808]

約数ペア:

[(1, 20153452808), (2, 10076726404), (4, 5038363202), (8, 2519181601), (17, 1185497224), (34, 592748612), (68, 296374306), (71, 283851448), (73, 276074696), (136, 148187153), (142, 141925724), (146, 138037348), (284, 70962862), (292, 69018674), (568, 35481431), (584, 34509337), (1207, 16697144), (1241, 16239688), (2414, 8348572), (2482, 8119844), (4828, 4174286), (4964, 4059922), (5183, 3888376), (9656, 2087143), (9928, 2029961), (10366, 1944188), (20732, 972094), (28591, 704888), (41464, 486047), (57182, 352444), (88111, 228728), (114364, 176222)]