87580405

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 36

約数和(自身を含む): 122223276

約数和(自身を除く): 34642871

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 361, 401, 605, 1045, 1805, 2005, 2299, 3971, 4411, 7619, 11495, 19855, 22055, 38095, 43681, 48521, 83809, 144761, 218405, 242605, 419045, 723805, 921899, 1592371, 4609495, 7961855, 17516081, 87580405]

約数ペア:

[(1, 87580405), (5, 17516081), (11, 7961855), (19, 4609495), (55, 1592371), (95, 921899), (121, 723805), (209, 419045), (361, 242605), (401, 218405), (605, 144761), (1045, 83809), (1805, 48521), (2005, 43681), (2299, 38095), (3971, 22055), (4411, 19855), (7619, 11495)]