19786507720

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1237}}^1\times {\mathrm{8161}}^1$

素因数の和:9423

約数の個数: 96

約数和(自身を含む): 51836372280

約数和(自身を除く): 32049864560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1237, 1960, 2474, 4948, 6185, 8161, 8659, 9896, 12370, 16322, 17318, 24740, 32644, 34636, 40805, 43295, 49480, 57127, 60613, 65288, 69272, 81610, 86590, 114254, 121226, 163220, 173180, 228508, 242452, 285635, 303065, 326440, 346360, 399889, 457016, 484904, 571270, 606130, 799778, 1142540, 1212260, 1599556, 1999445, 2285080, 2424520, 3199112, 3998890, 7997780, 10095157, 15995560, 20190314, 40380628, 50475785, 70666099, 80761256, 100951570, 141332198, 201903140, 282664396, 353330495, 403806280, 494662693, 565328792, 706660990, 989325386, 1413321980, 1978650772, 2473313465, 2826643960, 3957301544, 4946626930, 9893253860, 19786507720]

約数ペア:

[(1, 19786507720), (2, 9893253860), (4, 4946626930), (5, 3957301544), (7, 2826643960), (8, 2473313465), (10, 1978650772), (14, 1413321980), (20, 989325386), (28, 706660990), (35, 565328792), (40, 494662693), (49, 403806280), (56, 353330495), (70, 282664396), (98, 201903140), (140, 141332198), (196, 100951570), (245, 80761256), (280, 70666099), (392, 50475785), (490, 40380628), (980, 20190314), (1237, 15995560), (1960, 10095157), (2474, 7997780), (4948, 3998890), (6185, 3199112), (8161, 2424520), (8659, 2285080), (9896, 1999445), (12370, 1599556), (16322, 1212260), (17318, 1142540), (24740, 799778), (32644, 606130), (34636, 571270), (40805, 484904), (43295, 457016), (49480, 399889), (57127, 346360), (60613, 326440), (65288, 303065), (69272, 285635), (81610, 242452), (86590, 228508), (114254, 173180), (121226, 163220)]