20199256231

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{739}}^1$

素因数の和:957

約数の個数: 96

約数和(自身を含む): 28790380800

約数和(自身を除く): 8591124569

約数列:

[1, 7, 11, 17, 19, 49, 77, 119, 133, 157, 187, 209, 323, 539, 739, 833, 931, 1099, 1309, 1463, 1727, 2261, 2669, 2983, 3553, 5173, 7693, 8129, 9163, 10241, 12089, 12563, 14041, 15827, 18683, 20881, 24871, 29359, 32813, 36211, 50711, 56903, 84623, 87941, 98287, 116023, 130781, 138193, 146167, 154451, 174097, 205513, 229691, 238697, 354977, 398321, 557821, 615587, 688009, 812161, 967351, 1081157, 1276253, 1438591, 1607837, 1670879, 1972391, 2204437, 2484839, 2625667, 3904747, 5685127, 6771457, 7568099, 8933771, 11696153, 13806737, 15431059, 18379669, 21696301, 24248807, 27333229, 37475429, 62536397, 96647159, 108017413, 128657683, 151874107, 169741649, 262328003, 412229719, 1063118749, 1188191543, 1836296021, 2885608033, 20199256231]

約数ペア:

[(1, 20199256231), (7, 2885608033), (11, 1836296021), (17, 1188191543), (19, 1063118749), (49, 412229719), (77, 262328003), (119, 169741649), (133, 151874107), (157, 128657683), (187, 108017413), (209, 96647159), (323, 62536397), (539, 37475429), (739, 27333229), (833, 24248807), (931, 21696301), (1099, 18379669), (1309, 15431059), (1463, 13806737), (1727, 11696153), (2261, 8933771), (2669, 7568099), (2983, 6771457), (3553, 5685127), (5173, 3904747), (7693, 2625667), (8129, 2484839), (9163, 2204437), (10241, 1972391), (12089, 1670879), (12563, 1607837), (14041, 1438591), (15827, 1276253), (18683, 1081157), (20881, 967351), (24871, 812161), (29359, 688009), (32813, 615587), (36211, 557821), (50711, 398321), (56903, 354977), (84623, 238697), (87941, 229691), (98287, 205513), (116023, 174097), (130781, 154451), (138193, 146167)]