28026635

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2043

約数の個数: 32

約数和(自身を含む): 42749952

約数和(自身を除く): 14723317

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 1987, 2015, 2821, 9935, 13909, 14105, 25831, 61597, 69545, 129155, 180817, 307985, 431179, 800761, 904085, 2155895, 4003805, 5605327, 28026635]

約数ペア:

[(1, 28026635), (5, 5605327), (7, 4003805), (13, 2155895), (31, 904085), (35, 800761), (65, 431179), (91, 307985), (155, 180817), (217, 129155), (403, 69545), (455, 61597), (1085, 25831), (1987, 14105), (2015, 13909), (2821, 9935)]