81931136

素因数分解:

$2^7\times 7^2\times {\mathrm{13063}}^1$

素因数の和:13091

約数の個数: 48

約数和(自身を含む): 189885240

約数和(自身を除く): 107954104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 6272, 13063, 26126, 52252, 91441, 104504, 182882, 209008, 365764, 418016, 640087, 731528, 836032, 1280174, 1463056, 1672064, 2560348, 2926112, 5120696, 5852224, 10241392, 11704448, 20482784, 40965568, 81931136]

約数ペア:

[(1, 81931136), (2, 40965568), (4, 20482784), (7, 11704448), (8, 10241392), (14, 5852224), (16, 5120696), (28, 2926112), (32, 2560348), (49, 1672064), (56, 1463056), (64, 1280174), (98, 836032), (112, 731528), (128, 640087), (196, 418016), (224, 365764), (392, 209008), (448, 182882), (784, 104504), (896, 91441), (1568, 52252), (3136, 26126), (6272, 13063)]