638757728

素因数分解:

$2^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{773}}^1$

素因数の和:845

約数の個数: 144

約数和(自身を含む): 1600953984

約数和(自身を除く): 962196256

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 31, 32, 34, 49, 56, 62, 68, 98, 112, 119, 124, 136, 196, 217, 224, 238, 248, 272, 392, 434, 476, 496, 527, 544, 773, 784, 833, 868, 952, 992, 1054, 1519, 1546, 1568, 1666, 1736, 1904, 2108, 3038, 3092, 3332, 3472, 3689, 3808, 4216, 5411, 6076, 6184, 6664, 6944, 7378, 8432, 10822, 12152, 12368, 13141, 13328, 14756, 16864, 21644, 23963, 24304, 24736, 25823, 26282, 26656, 29512, 37877, 43288, 47926, 48608, 51646, 52564, 59024, 75754, 86576, 91987, 95852, 103292, 105128, 118048, 151508, 167741, 173152, 183974, 191704, 206584, 210256, 303016, 335482, 367948, 383408, 407371, 413168, 420512, 606032, 643909, 670964, 735896, 766816, 814742, 826336, 1174187, 1212064, 1287818, 1341928, 1471792, 1629484, 2348374, 2575636, 2683856, 2851597, 2943584, 3258968, 4696748, 5151272, 5367712, 5703194, 6517936, 9393496, 10302544, 11406388, 13035872, 18786992, 19961179, 20605088, 22812776, 37573984, 39922358, 45625552, 79844716, 91251104, 159689432, 319378864, 638757728]

約数ペア:

[(1, 638757728), (2, 319378864), (4, 159689432), (7, 91251104), (8, 79844716), (14, 45625552), (16, 39922358), (17, 37573984), (28, 22812776), (31, 20605088), (32, 19961179), (34, 18786992), (49, 13035872), (56, 11406388), (62, 10302544), (68, 9393496), (98, 6517936), (112, 5703194), (119, 5367712), (124, 5151272), (136, 4696748), (196, 3258968), (217, 2943584), (224, 2851597), (238, 2683856), (248, 2575636), (272, 2348374), (392, 1629484), (434, 1471792), (476, 1341928), (496, 1287818), (527, 1212064), (544, 1174187), (773, 826336), (784, 814742), (833, 766816), (868, 735896), (952, 670964), (992, 643909), (1054, 606032), (1519, 420512), (1546, 413168), (1568, 407371), (1666, 383408), (1736, 367948), (1904, 335482), (2108, 303016), (3038, 210256), (3092, 206584), (3332, 191704), (3472, 183974), (3689, 173152), (3808, 167741), (4216, 151508), (5411, 118048), (6076, 105128), (6184, 103292), (6664, 95852), (6944, 91987), (7378, 86576), (8432, 75754), (10822, 59024), (12152, 52564), (12368, 51646), (13141, 48608), (13328, 47926), (14756, 43288), (16864, 37877), (21644, 29512), (23963, 26656), (24304, 26282), (24736, 25823)]