1281575640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{4787}}^1$

素因数の和:4921

約数の個数: 128

約数和(自身を含む): 4054095360

約数和(自身を除く): 2772519720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 97, 115, 120, 138, 184, 194, 230, 276, 291, 345, 388, 460, 485, 552, 582, 690, 776, 920, 970, 1164, 1380, 1455, 1940, 2231, 2328, 2760, 2910, 3880, 4462, 4787, 5820, 6693, 8924, 9574, 11155, 11640, 13386, 14361, 17848, 19148, 22310, 23935, 26772, 28722, 33465, 38296, 44620, 47870, 53544, 57444, 66930, 71805, 89240, 95740, 110101, 114888, 133860, 143610, 191480, 220202, 267720, 287220, 330303, 440404, 464339, 550505, 574440, 660606, 880808, 928678, 1101010, 1321212, 1393017, 1651515, 1857356, 2202020, 2321695, 2642424, 2786034, 3303030, 3714712, 4404040, 4643390, 5572068, 6606060, 6965085, 9286780, 10679797, 11144136, 13212120, 13930170, 18573560, 21359594, 27860340, 32039391, 42719188, 53398985, 55720680, 64078782, 85438376, 106797970, 128157564, 160196955, 213595940, 256315128, 320393910, 427191880, 640787820, 1281575640]

約数ペア:

[(1, 1281575640), (2, 640787820), (3, 427191880), (4, 320393910), (5, 256315128), (6, 213595940), (8, 160196955), (10, 128157564), (12, 106797970), (15, 85438376), (20, 64078782), (23, 55720680), (24, 53398985), (30, 42719188), (40, 32039391), (46, 27860340), (60, 21359594), (69, 18573560), (92, 13930170), (97, 13212120), (115, 11144136), (120, 10679797), (138, 9286780), (184, 6965085), (194, 6606060), (230, 5572068), (276, 4643390), (291, 4404040), (345, 3714712), (388, 3303030), (460, 2786034), (485, 2642424), (552, 2321695), (582, 2202020), (690, 1857356), (776, 1651515), (920, 1393017), (970, 1321212), (1164, 1101010), (1380, 928678), (1455, 880808), (1940, 660606), (2231, 574440), (2328, 550505), (2760, 464339), (2910, 440404), (3880, 330303), (4462, 287220), (4787, 267720), (5820, 220202), (6693, 191480), (8924, 143610), (9574, 133860), (11155, 114888), (11640, 110101), (13386, 95740), (14361, 89240), (17848, 71805), (19148, 66930), (22310, 57444), (23935, 53544), (26772, 47870), (28722, 44620), (33465, 38296)]