39980545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 54743040

約数和(自身を除く): 14762495

約数列:

[1, 5, 11, 31, 55, 131, 155, 179, 341, 655, 895, 1441, 1705, 1969, 4061, 5549, 7205, 9845, 20305, 23449, 27745, 44671, 61039, 117245, 223355, 257939, 305195, 726919, 1289695, 3634595, 7996109, 39980545]

約数ペア:

[(1, 39980545), (5, 7996109), (11, 3634595), (31, 1289695), (55, 726919), (131, 305195), (155, 257939), (179, 223355), (341, 117245), (655, 61039), (895, 44671), (1441, 27745), (1705, 23449), (1969, 20305), (4061, 9845), (5549, 7205)]