399478605

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{8839}}^1$

素因数の和:9001

約数の個数: 32

約数和(自身を含む): 672122880

約数和(自身を除く): 272644275

約数列:

[1, 3, 5, 15, 23, 69, 115, 131, 345, 393, 655, 1965, 3013, 8839, 9039, 15065, 26517, 44195, 45195, 132585, 203297, 609891, 1016485, 1157909, 3049455, 3473727, 5789545, 17368635, 26631907, 79895721, 133159535, 399478605]

約数ペア:

[(1, 399478605), (3, 133159535), (5, 79895721), (15, 26631907), (23, 17368635), (69, 5789545), (115, 3473727), (131, 3049455), (345, 1157909), (393, 1016485), (655, 609891), (1965, 203297), (3013, 132585), (8839, 45195), (9039, 44195), (15065, 26517)]