81481792

素因数分解:

$2^6\times 7^1\times {\mathrm{239}}^1\times {\mathrm{761}}^1$

素因数の和:1019

約数の個数: 56

約数和(自身を含む): 185806080

約数和(自身を除く): 104324288

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 239, 448, 478, 761, 956, 1522, 1673, 1912, 3044, 3346, 3824, 5327, 6088, 6692, 7648, 10654, 12176, 13384, 15296, 21308, 24352, 26768, 42616, 48704, 53536, 85232, 107072, 170464, 181879, 340928, 363758, 727516, 1273153, 1455032, 2546306, 2910064, 5092612, 5820128, 10185224, 11640256, 20370448, 40740896, 81481792]

約数ペア:

[(1, 81481792), (2, 40740896), (4, 20370448), (7, 11640256), (8, 10185224), (14, 5820128), (16, 5092612), (28, 2910064), (32, 2546306), (56, 1455032), (64, 1273153), (112, 727516), (224, 363758), (239, 340928), (448, 181879), (478, 170464), (761, 107072), (956, 85232), (1522, 53536), (1673, 48704), (1912, 42616), (3044, 26768), (3346, 24352), (3824, 21308), (5327, 15296), (6088, 13384), (6692, 12176), (7648, 10654)]