81771896

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12511}}^1$

素因数の和:12579

約数の個数: 32

約数和(自身を含む): 165158400

約数和(自身を除く): 83386504

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3268, 6536, 12511, 25022, 50044, 100088, 237709, 475418, 537973, 950836, 1075946, 1901672, 2151892, 4303784, 10221487, 20442974, 40885948, 81771896]

約数ペア:

[(1, 81771896), (2, 40885948), (4, 20442974), (8, 10221487), (19, 4303784), (38, 2151892), (43, 1901672), (76, 1075946), (86, 950836), (152, 537973), (172, 475418), (344, 237709), (817, 100088), (1634, 50044), (3268, 25022), (6536, 12511)]