18999151195

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{457}}^1\times {\mathrm{4397}}^1$

素因数の和:4951

約数の個数: 32

約数和(自身を含む): 23978036736

約数和(自身を除く): 4978885541

約数列:

[1, 5, 31, 61, 155, 305, 457, 1891, 2285, 4397, 9455, 14167, 21985, 27877, 70835, 136307, 139385, 268217, 681535, 864187, 1341085, 2009429, 4320935, 8314727, 10047145, 41573635, 62292299, 122575169, 311461495, 612875845, 3799830239, 18999151195]

約数ペア:

[(1, 18999151195), (5, 3799830239), (31, 612875845), (61, 311461495), (155, 122575169), (305, 62292299), (457, 41573635), (1891, 10047145), (2285, 8314727), (4397, 4320935), (9455, 2009429), (14167, 1341085), (21985, 864187), (27877, 681535), (70835, 268217), (136307, 139385)]