81878776

素因数分解:

$2^3\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2281}}^1$

素因数の和:2935

約数の個数: 32

約数和(自身を含む): 175805280

約数和(自身を除く): 93926504

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 641, 1282, 2281, 2564, 4487, 4562, 5128, 8974, 9124, 15967, 17948, 18248, 31934, 35896, 63868, 127736, 1462121, 2924242, 5848484, 10234847, 11696968, 20469694, 40939388, 81878776]

約数ペア:

[(1, 81878776), (2, 40939388), (4, 20469694), (7, 11696968), (8, 10234847), (14, 5848484), (28, 2924242), (56, 1462121), (641, 127736), (1282, 63868), (2281, 35896), (2564, 31934), (4487, 18248), (4562, 17948), (5128, 15967), (8974, 9124)]