128720858

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{7933}}^1$

素因数の和:8022

約数の個数: 32

約数和(自身を含む): 236115840

約数和(自身を除く): 107394982

約数列:

[1, 2, 7, 14, 19, 38, 61, 122, 133, 266, 427, 854, 1159, 2318, 7933, 8113, 15866, 16226, 55531, 111062, 150727, 301454, 483913, 967826, 1055089, 2110178, 3387391, 6774782, 9194347, 18388694, 64360429, 128720858]

約数ペア:

[(1, 128720858), (2, 64360429), (7, 18388694), (14, 9194347), (19, 6774782), (38, 3387391), (61, 2110178), (122, 1055089), (133, 967826), (266, 483913), (427, 301454), (854, 150727), (1159, 111062), (2318, 55531), (7933, 16226), (8113, 15866)]