12892180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1297}}^1$

素因数の和:1384

約数の個数: 48

約数和(自身を含む): 31401216

約数和(自身を除く): 18509036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1297, 1420, 1988, 2485, 2594, 4970, 5188, 6485, 9079, 9940, 12970, 18158, 25940, 36316, 45395, 90790, 92087, 181580, 184174, 368348, 460435, 644609, 920870, 1289218, 1841740, 2578436, 3223045, 6446090, 12892180]

約数ペア:

[(1, 12892180), (2, 6446090), (4, 3223045), (5, 2578436), (7, 1841740), (10, 1289218), (14, 920870), (20, 644609), (28, 460435), (35, 368348), (70, 184174), (71, 181580), (140, 92087), (142, 90790), (284, 45395), (355, 36316), (497, 25940), (710, 18158), (994, 12970), (1297, 9940), (1420, 9079), (1988, 6485), (2485, 5188), (2594, 4970)]