20177498488

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{52121}}^1$

素因数の和:52388

約数の個数: 64

約数和(自身を含む): 44833259520

約数和(自身を除く): 24655761032

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 223, 248, 434, 446, 868, 892, 1561, 1736, 1784, 3122, 6244, 6913, 12488, 13826, 27652, 48391, 52121, 55304, 96782, 104242, 193564, 208484, 364847, 387128, 416968, 729694, 1459388, 1615751, 2918776, 3231502, 6463004, 11310257, 11622983, 12926008, 22620514, 23245966, 45241028, 46491932, 81360881, 90482056, 92983864, 162721762, 325443524, 360312473, 650887048, 720624946, 1441249892, 2522187311, 2882499784, 5044374622, 10088749244, 20177498488]

約数ペア:

[(1, 20177498488), (2, 10088749244), (4, 5044374622), (7, 2882499784), (8, 2522187311), (14, 1441249892), (28, 720624946), (31, 650887048), (56, 360312473), (62, 325443524), (124, 162721762), (217, 92983864), (223, 90482056), (248, 81360881), (434, 46491932), (446, 45241028), (868, 23245966), (892, 22620514), (1561, 12926008), (1736, 11622983), (1784, 11310257), (3122, 6463004), (6244, 3231502), (6913, 2918776), (12488, 1615751), (13826, 1459388), (27652, 729694), (48391, 416968), (52121, 387128), (55304, 364847), (96782, 208484), (104242, 193564)]