220199120

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{12343}}^1$

素因数の和:12579

約数の個数: 40

約数和(自身を含む): 514300416

約数和(自身を除く): 294101296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1784, 2230, 3568, 4460, 8920, 12343, 17840, 24686, 49372, 61715, 98744, 123430, 197488, 246860, 493720, 987440, 2752489, 5504978, 11009956, 13762445, 22019912, 27524890, 44039824, 55049780, 110099560, 220199120]

約数ペア:

[(1, 220199120), (2, 110099560), (4, 55049780), (5, 44039824), (8, 27524890), (10, 22019912), (16, 13762445), (20, 11009956), (40, 5504978), (80, 2752489), (223, 987440), (446, 493720), (892, 246860), (1115, 197488), (1784, 123430), (2230, 98744), (3568, 61715), (4460, 49372), (8920, 24686), (12343, 17840)]