138742520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1093

約数の個数: 96

約数和(自身を含む): 368621280

約数和(自身を除く): 229878760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 71, 98, 140, 142, 196, 245, 280, 284, 355, 392, 490, 497, 568, 710, 980, 994, 997, 1420, 1960, 1988, 1994, 2485, 2840, 3479, 3976, 3988, 4970, 4985, 6958, 6979, 7976, 9940, 9970, 13916, 13958, 17395, 19880, 19940, 27832, 27916, 34790, 34895, 39880, 48853, 55832, 69580, 69790, 70787, 97706, 139160, 139580, 141574, 195412, 244265, 279160, 283148, 353935, 390824, 488530, 495509, 566296, 707870, 977060, 991018, 1415740, 1954120, 1982036, 2477545, 2831480, 3468563, 3964072, 4955090, 6937126, 9910180, 13874252, 17342815, 19820360, 27748504, 34685630, 69371260, 138742520]

約数ペア:

[(1, 138742520), (2, 69371260), (4, 34685630), (5, 27748504), (7, 19820360), (8, 17342815), (10, 13874252), (14, 9910180), (20, 6937126), (28, 4955090), (35, 3964072), (40, 3468563), (49, 2831480), (56, 2477545), (70, 1982036), (71, 1954120), (98, 1415740), (140, 991018), (142, 977060), (196, 707870), (245, 566296), (280, 495509), (284, 488530), (355, 390824), (392, 353935), (490, 283148), (497, 279160), (568, 244265), (710, 195412), (980, 141574), (994, 139580), (997, 139160), (1420, 97706), (1960, 70787), (1988, 69790), (1994, 69580), (2485, 55832), (2840, 48853), (3479, 39880), (3976, 34895), (3988, 34790), (4970, 27916), (4985, 27832), (6958, 19940), (6979, 19880), (7976, 17395), (9940, 13958), (9970, 13916)]