28405888

素因数分解:

$2^7\times 7^3\times {\mathrm{647}}^1$

素因数の和:682

約数の個数: 64

約数和(自身を含む): 66096000

約数和(自身を除く): 37690112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 343, 392, 448, 647, 686, 784, 896, 1294, 1372, 1568, 2588, 2744, 3136, 4529, 5176, 5488, 6272, 9058, 10352, 10976, 18116, 20704, 21952, 31703, 36232, 41408, 43904, 63406, 72464, 82816, 126812, 144928, 221921, 253624, 289856, 443842, 507248, 579712, 887684, 1014496, 1775368, 2028992, 3550736, 4057984, 7101472, 14202944, 28405888]

約数ペア:

[(1, 28405888), (2, 14202944), (4, 7101472), (7, 4057984), (8, 3550736), (14, 2028992), (16, 1775368), (28, 1014496), (32, 887684), (49, 579712), (56, 507248), (64, 443842), (98, 289856), (112, 253624), (128, 221921), (196, 144928), (224, 126812), (343, 82816), (392, 72464), (448, 63406), (647, 43904), (686, 41408), (784, 36232), (896, 31703), (1294, 21952), (1372, 20704), (1568, 18116), (2588, 10976), (2744, 10352), (3136, 9058), (4529, 6272), (5176, 5488)]