215686515

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{479}}^1\times {\mathrm{2729}}^1$

素因数の和:3227

約数の個数: 32

約数和(自身を含む): 377395200

約数和(自身を除く): 161708685

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 479, 1437, 2395, 2729, 5269, 7185, 8187, 13645, 15807, 26345, 30019, 40935, 79035, 90057, 150095, 450285, 1307191, 3921573, 6535955, 14379101, 19607865, 43137303, 71895505, 215686515]

約数ペア:

[(1, 215686515), (3, 71895505), (5, 43137303), (11, 19607865), (15, 14379101), (33, 6535955), (55, 3921573), (165, 1307191), (479, 450285), (1437, 150095), (2395, 90057), (2729, 79035), (5269, 40935), (7185, 30019), (8187, 26345), (13645, 15807)]