639503872

素因数分解:

$2^9\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1637}}^1$

素因数の和:1771

約数の個数: 80

約数和(自身を含む): 1474593120

約数和(自身を除く): 835089248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 109, 112, 128, 218, 224, 256, 436, 448, 512, 763, 872, 896, 1526, 1637, 1744, 1792, 3052, 3274, 3488, 3584, 6104, 6548, 6976, 11459, 12208, 13096, 13952, 22918, 24416, 26192, 27904, 45836, 48832, 52384, 55808, 91672, 97664, 104768, 178433, 183344, 195328, 209536, 356866, 366688, 390656, 419072, 713732, 733376, 838144, 1249031, 1427464, 1466752, 2498062, 2854928, 2933504, 4996124, 5709856, 5867008, 9992248, 11419712, 19984496, 22839424, 39968992, 45678848, 79937984, 91357696, 159875968, 319751936, 639503872]

約数ペア:

[(1, 639503872), (2, 319751936), (4, 159875968), (7, 91357696), (8, 79937984), (14, 45678848), (16, 39968992), (28, 22839424), (32, 19984496), (56, 11419712), (64, 9992248), (109, 5867008), (112, 5709856), (128, 4996124), (218, 2933504), (224, 2854928), (256, 2498062), (436, 1466752), (448, 1427464), (512, 1249031), (763, 838144), (872, 733376), (896, 713732), (1526, 419072), (1637, 390656), (1744, 366688), (1792, 356866), (3052, 209536), (3274, 195328), (3488, 183344), (3584, 178433), (6104, 104768), (6548, 97664), (6976, 91672), (11459, 55808), (12208, 52384), (13096, 48832), (13952, 45836), (22918, 27904), (24416, 26192)]