19840060

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 23907140

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 433, 580, 790, 866, 1580, 1732, 2165, 2291, 4330, 4582, 8660, 9164, 11455, 12557, 22910, 25114, 34207, 45820, 50228, 62785, 68414, 125570, 136828, 171035, 251140, 342070, 684140, 992003, 1984006, 3968012, 4960015, 9920030, 19840060]

約数ペア:

[(1, 19840060), (2, 9920030), (4, 4960015), (5, 3968012), (10, 1984006), (20, 992003), (29, 684140), (58, 342070), (79, 251140), (116, 171035), (145, 136828), (158, 125570), (290, 68414), (316, 62785), (395, 50228), (433, 45820), (580, 34207), (790, 25114), (866, 22910), (1580, 12557), (1732, 11455), (2165, 9164), (2291, 8660), (4330, 4582)]