20206472

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1039}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 26967928

約数列:

[1, 2, 4, 8, 11, 13, 17, 22, 26, 34, 44, 52, 68, 88, 104, 136, 143, 187, 221, 286, 374, 442, 572, 748, 884, 1039, 1144, 1496, 1768, 2078, 2431, 4156, 4862, 8312, 9724, 11429, 13507, 17663, 19448, 22858, 27014, 35326, 45716, 54028, 70652, 91432, 108056, 141304, 148577, 194293, 229619, 297154, 388586, 459238, 594308, 777172, 918476, 1188616, 1554344, 1836952, 2525809, 5051618, 10103236, 20206472]

約数ペア:

[(1, 20206472), (2, 10103236), (4, 5051618), (8, 2525809), (11, 1836952), (13, 1554344), (17, 1188616), (22, 918476), (26, 777172), (34, 594308), (44, 459238), (52, 388586), (68, 297154), (88, 229619), (104, 194293), (136, 148577), (143, 141304), (187, 108056), (221, 91432), (286, 70652), (374, 54028), (442, 45716), (572, 35326), (748, 27014), (884, 22858), (1039, 19448), (1144, 17663), (1496, 13507), (1768, 11429), (2078, 9724), (2431, 8312), (4156, 4862)]