20405508

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4349}}^1$

素因数の和:4396

約数の個数: 48

約数和(自身を含む): 52617600

約数和(自身を除く): 32212092

約数列:

[1, 2, 3, 4, 6, 12, 17, 23, 34, 46, 51, 68, 69, 92, 102, 138, 204, 276, 391, 782, 1173, 1564, 2346, 4349, 4692, 8698, 13047, 17396, 26094, 52188, 73933, 100027, 147866, 200054, 221799, 295732, 300081, 400108, 443598, 600162, 887196, 1200324, 1700459, 3400918, 5101377, 6801836, 10202754, 20405508]

約数ペア:

[(1, 20405508), (2, 10202754), (3, 6801836), (4, 5101377), (6, 3400918), (12, 1700459), (17, 1200324), (23, 887196), (34, 600162), (46, 443598), (51, 400108), (68, 300081), (69, 295732), (92, 221799), (102, 200054), (138, 147866), (204, 100027), (276, 73933), (391, 52188), (782, 26094), (1173, 17396), (1564, 13047), (2346, 8698), (4349, 4692)]