278987968

素因数分解:

$2^6\times 7^3\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:283

約数の個数: 112

約数和(自身を含む): 658368000

約数和(自身を除く): 379380032

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 71, 98, 112, 142, 179, 196, 224, 284, 343, 358, 392, 448, 497, 568, 686, 716, 784, 994, 1136, 1253, 1372, 1432, 1568, 1988, 2272, 2506, 2744, 2864, 3136, 3479, 3976, 4544, 5012, 5488, 5728, 6958, 7952, 8771, 10024, 10976, 11456, 12709, 13916, 15904, 17542, 20048, 21952, 24353, 25418, 27832, 31808, 35084, 40096, 48706, 50836, 55664, 61397, 70168, 80192, 88963, 97412, 101672, 111328, 122794, 140336, 177926, 194824, 203344, 222656, 245588, 280672, 355852, 389648, 406688, 491176, 561344, 622741, 711704, 779296, 813376, 982352, 1245482, 1423408, 1558592, 1964704, 2490964, 2846816, 3929408, 4359187, 4981928, 5693632, 8718374, 9963856, 17436748, 19927712, 34873496, 39855424, 69746992, 139493984, 278987968]

約数ペア:

[(1, 278987968), (2, 139493984), (4, 69746992), (7, 39855424), (8, 34873496), (14, 19927712), (16, 17436748), (28, 9963856), (32, 8718374), (49, 5693632), (56, 4981928), (64, 4359187), (71, 3929408), (98, 2846816), (112, 2490964), (142, 1964704), (179, 1558592), (196, 1423408), (224, 1245482), (284, 982352), (343, 813376), (358, 779296), (392, 711704), (448, 622741), (497, 561344), (568, 491176), (686, 406688), (716, 389648), (784, 355852), (994, 280672), (1136, 245588), (1253, 222656), (1372, 203344), (1432, 194824), (1568, 177926), (1988, 140336), (2272, 122794), (2506, 111328), (2744, 101672), (2864, 97412), (3136, 88963), (3479, 80192), (3976, 70168), (4544, 61397), (5012, 55664), (5488, 50836), (5728, 48706), (6958, 40096), (7952, 35084), (8771, 31808), (10024, 27832), (10976, 25418), (11456, 24353), (12709, 21952), (13916, 20048), (15904, 17542)]