40171904

素因数分解:

$2^7\times {\mathrm{157}}^1\times {\mathrm{1999}}^1$

素因数の和:2170

約数の個数: 32

約数和(自身を含む): 80580000

約数和(自身を除く): 40408096

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 157, 314, 628, 1256, 1999, 2512, 3998, 5024, 7996, 10048, 15992, 20096, 31984, 63968, 127936, 255872, 313843, 627686, 1255372, 2510744, 5021488, 10042976, 20085952, 40171904]

約数ペア:

[(1, 40171904), (2, 20085952), (4, 10042976), (8, 5021488), (16, 2510744), (32, 1255372), (64, 627686), (128, 313843), (157, 255872), (314, 127936), (628, 63968), (1256, 31984), (1999, 20096), (2512, 15992), (3998, 10048), (5024, 7996)]