28780185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4091}}^1$

素因数の和:4173

約数の個数: 32

約数和(自身を含む): 53425152

約数和(自身を除く): 24644967

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 105, 201, 335, 469, 1005, 1407, 2345, 4091, 7035, 12273, 20455, 28637, 61365, 85911, 143185, 274097, 429555, 822291, 1370485, 1918679, 4111455, 5756037, 9593395, 28780185]

約数ペア:

[(1, 28780185), (3, 9593395), (5, 5756037), (7, 4111455), (15, 1918679), (21, 1370485), (35, 822291), (67, 429555), (105, 274097), (201, 143185), (335, 85911), (469, 61365), (1005, 28637), (1407, 20455), (2345, 12273), (4091, 7035)]