81861248

素因数分解:

$2^7\times 7^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:665

約数の個数: 64

約数和(自身を含む): 187696320

約数和(自身を除く): 105835072

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 211, 224, 422, 433, 448, 844, 866, 896, 1477, 1688, 1732, 2954, 3031, 3376, 3464, 5908, 6062, 6752, 6928, 11816, 12124, 13504, 13856, 23632, 24248, 27008, 27712, 47264, 48496, 55424, 91363, 94528, 96992, 182726, 189056, 193984, 365452, 387968, 639541, 730904, 1279082, 1461808, 2558164, 2923616, 5116328, 5847232, 10232656, 11694464, 20465312, 40930624, 81861248]

約数ペア:

[(1, 81861248), (2, 40930624), (4, 20465312), (7, 11694464), (8, 10232656), (14, 5847232), (16, 5116328), (28, 2923616), (32, 2558164), (56, 1461808), (64, 1279082), (112, 730904), (128, 639541), (211, 387968), (224, 365452), (422, 193984), (433, 189056), (448, 182726), (844, 96992), (866, 94528), (896, 91363), (1477, 55424), (1688, 48496), (1732, 47264), (2954, 27712), (3031, 27008), (3376, 24248), (3464, 23632), (5908, 13856), (6062, 13504), (6752, 12124), (6928, 11816)]