13365220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{769}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 31046400

約数和(自身を除く): 17681180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 769, 790, 869, 1538, 1580, 1738, 3076, 3476, 3845, 4345, 7690, 8459, 8690, 15380, 16918, 17380, 33836, 42295, 60751, 84590, 121502, 169180, 243004, 303755, 607510, 668261, 1215020, 1336522, 2673044, 3341305, 6682610, 13365220]

約数ペア:

[(1, 13365220), (2, 6682610), (4, 3341305), (5, 2673044), (10, 1336522), (11, 1215020), (20, 668261), (22, 607510), (44, 303755), (55, 243004), (79, 169180), (110, 121502), (158, 84590), (220, 60751), (316, 42295), (395, 33836), (769, 17380), (790, 16918), (869, 15380), (1538, 8690), (1580, 8459), (1738, 7690), (3076, 4345), (3476, 3845)]