19680328

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{2069}}^1$

素因数の和:2145

約数の個数: 32

約数和(自身を含む): 39123000

約数和(自身を除く): 19442672

約数列:

[1, 2, 4, 8, 29, 41, 58, 82, 116, 164, 232, 328, 1189, 2069, 2378, 4138, 4756, 8276, 9512, 16552, 60001, 84829, 120002, 169658, 240004, 339316, 480008, 678632, 2460041, 4920082, 9840164, 19680328]

約数ペア:

[(1, 19680328), (2, 9840164), (4, 4920082), (8, 2460041), (29, 678632), (41, 480008), (58, 339316), (82, 240004), (116, 169658), (164, 120002), (232, 84829), (328, 60001), (1189, 16552), (2069, 9512), (2378, 8276), (4138, 4756)]