2018531745

素因数分解:

$3^6\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1381}}^1$

素因数の和:1805

約数の個数: 56

約数和(自身を含む): 3643388712

約数和(自身を除く): 1624856967

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 401, 405, 729, 1203, 1215, 1381, 2005, 3609, 3645, 4143, 6015, 6905, 10827, 12429, 18045, 20715, 32481, 37287, 54135, 62145, 97443, 111861, 162405, 186435, 292329, 335583, 487215, 553781, 559305, 1006749, 1461645, 1661343, 1677915, 2768905, 4984029, 5033745, 8306715, 14952087, 24920145, 44856261, 74760435, 134568783, 224281305, 403706349, 672843915, 2018531745]

約数ペア:

[(1, 2018531745), (3, 672843915), (5, 403706349), (9, 224281305), (15, 134568783), (27, 74760435), (45, 44856261), (81, 24920145), (135, 14952087), (243, 8306715), (401, 5033745), (405, 4984029), (729, 2768905), (1203, 1677915), (1215, 1661343), (1381, 1461645), (2005, 1006749), (3609, 559305), (3645, 553781), (4143, 487215), (6015, 335583), (6905, 292329), (10827, 186435), (12429, 162405), (18045, 111861), (20715, 97443), (32481, 62145), (37287, 54135)]