13082020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1907}}^1$

素因数の和:1937

約数の個数: 48

約数和(自身を含む): 32054400

約数和(自身を除く): 18972380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1907, 3430, 3814, 6860, 7628, 9535, 13349, 19070, 26698, 38140, 53396, 66745, 93443, 133490, 186886, 266980, 373772, 467215, 654101, 934430, 1308202, 1868860, 2616404, 3270505, 6541010, 13082020]

約数ペア:

[(1, 13082020), (2, 6541010), (4, 3270505), (5, 2616404), (7, 1868860), (10, 1308202), (14, 934430), (20, 654101), (28, 467215), (35, 373772), (49, 266980), (70, 186886), (98, 133490), (140, 93443), (196, 66745), (245, 53396), (343, 38140), (490, 26698), (686, 19070), (980, 13349), (1372, 9535), (1715, 7628), (1907, 6860), (3430, 3814)]