261234116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:146

約数の個数: 108

約数和(自身を含む): 581983920

約数和(自身を除く): 320749804

約数列:

[1, 2, 4, 11, 13, 19, 22, 26, 38, 43, 44, 52, 76, 86, 143, 169, 172, 209, 247, 286, 338, 418, 473, 494, 559, 572, 676, 817, 836, 946, 988, 1118, 1634, 1849, 1859, 1892, 2236, 2717, 3211, 3268, 3698, 3718, 5434, 6149, 6422, 7267, 7396, 7436, 8987, 10621, 10868, 12298, 12844, 14534, 17974, 20339, 21242, 24037, 24596, 29068, 35131, 35321, 35948, 40678, 42484, 48074, 70262, 70642, 79937, 81356, 96148, 116831, 138073, 140524, 141284, 159874, 233662, 264407, 276146, 312481, 319748, 386441, 456703, 467324, 528814, 552292, 624962, 772882, 913406, 1057628, 1249924, 1518803, 1545764, 1826812, 3037606, 3437291, 5023733, 5937139, 6075212, 6874582, 10047466, 11874278, 13749164, 20094932, 23748556, 65308529, 130617058, 261234116]

約数ペア:

[(1, 261234116), (2, 130617058), (4, 65308529), (11, 23748556), (13, 20094932), (19, 13749164), (22, 11874278), (26, 10047466), (38, 6874582), (43, 6075212), (44, 5937139), (52, 5023733), (76, 3437291), (86, 3037606), (143, 1826812), (169, 1545764), (172, 1518803), (209, 1249924), (247, 1057628), (286, 913406), (338, 772882), (418, 624962), (473, 552292), (494, 528814), (559, 467324), (572, 456703), (676, 386441), (817, 319748), (836, 312481), (946, 276146), (988, 264407), (1118, 233662), (1634, 159874), (1849, 141284), (1859, 140524), (1892, 138073), (2236, 116831), (2717, 96148), (3211, 81356), (3268, 79937), (3698, 70642), (3718, 70262), (5434, 48074), (6149, 42484), (6422, 40678), (7267, 35948), (7396, 35321), (7436, 35131), (8987, 29068), (10621, 24596), (10868, 24037), (12298, 21242), (12844, 20339), (14534, 17974)]