128765560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:557

約数の個数: 128

約数和(自身を含む): 365783040

約数和(自身を除く): 237017480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 97, 110, 140, 154, 194, 220, 280, 308, 385, 388, 431, 440, 485, 616, 679, 770, 776, 862, 970, 1067, 1358, 1540, 1724, 1940, 2134, 2155, 2716, 3017, 3080, 3395, 3448, 3880, 4268, 4310, 4741, 5335, 5432, 6034, 6790, 7469, 8536, 8620, 9482, 10670, 12068, 13580, 14938, 15085, 17240, 18964, 21340, 23705, 24136, 27160, 29876, 30170, 33187, 37345, 37928, 41807, 42680, 47410, 59752, 60340, 66374, 74690, 83614, 94820, 120680, 132748, 149380, 165935, 167228, 189640, 209035, 265496, 292649, 298760, 331870, 334456, 418070, 459877, 585298, 663740, 836140, 919754, 1170596, 1327480, 1463245, 1672280, 1839508, 2299385, 2341192, 2926490, 3219139, 3679016, 4598770, 5852980, 6438278, 9197540, 11705960, 12876556, 16095695, 18395080, 25753112, 32191390, 64382780, 128765560]

約数ペア:

[(1, 128765560), (2, 64382780), (4, 32191390), (5, 25753112), (7, 18395080), (8, 16095695), (10, 12876556), (11, 11705960), (14, 9197540), (20, 6438278), (22, 5852980), (28, 4598770), (35, 3679016), (40, 3219139), (44, 2926490), (55, 2341192), (56, 2299385), (70, 1839508), (77, 1672280), (88, 1463245), (97, 1327480), (110, 1170596), (140, 919754), (154, 836140), (194, 663740), (220, 585298), (280, 459877), (308, 418070), (385, 334456), (388, 331870), (431, 298760), (440, 292649), (485, 265496), (616, 209035), (679, 189640), (770, 167228), (776, 165935), (862, 149380), (970, 132748), (1067, 120680), (1358, 94820), (1540, 83614), (1724, 74690), (1940, 66374), (2134, 60340), (2155, 59752), (2716, 47410), (3017, 42680), (3080, 41807), (3395, 37928), (3448, 37345), (3880, 33187), (4268, 30170), (4310, 29876), (4741, 27160), (5335, 24136), (5432, 23705), (6034, 21340), (6790, 18964), (7469, 17240), (8536, 15085), (8620, 14938), (9482, 13580), (10670, 12068)]