20570060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{421}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 49627200

約数和(自身を除く): 29057140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 421, 698, 842, 1396, 1684, 1745, 2105, 2443, 2947, 3490, 4210, 4886, 5894, 6980, 8420, 9772, 11788, 12215, 14735, 24430, 29470, 48860, 58940, 146929, 293858, 587716, 734645, 1028503, 1469290, 2057006, 2938580, 4114012, 5142515, 10285030, 20570060]

約数ペア:

[(1, 20570060), (2, 10285030), (4, 5142515), (5, 4114012), (7, 2938580), (10, 2057006), (14, 1469290), (20, 1028503), (28, 734645), (35, 587716), (70, 293858), (140, 146929), (349, 58940), (421, 48860), (698, 29470), (842, 24430), (1396, 14735), (1684, 12215), (1745, 11788), (2105, 9772), (2443, 8420), (2947, 6980), (3490, 5894), (4210, 4886)]