81815992

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{249439}}^1$

素因数の和:249486

約数の個数: 16

約数和(自身を含む): 157147200

約数和(自身を除く): 75331208

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 249439, 498878, 997756, 1995512, 10226999, 20453998, 40907996, 81815992]

約数ペア:

[(1, 81815992), (2, 40907996), (4, 20453998), (8, 10226999), (41, 1995512), (82, 997756), (164, 498878), (328, 249439)]