12915920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9497}}^1$

素因数の和:9527

約数の個数: 40

約数和(自身を含む): 31799304

約数和(自身を除く): 18883384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9497, 18994, 37988, 47485, 75976, 94970, 151952, 161449, 189940, 322898, 379880, 645796, 759760, 807245, 1291592, 1614490, 2583184, 3228980, 6457960, 12915920]

約数ペア:

[(1, 12915920), (2, 6457960), (4, 3228980), (5, 2583184), (8, 1614490), (10, 1291592), (16, 807245), (17, 759760), (20, 645796), (34, 379880), (40, 322898), (68, 189940), (80, 161449), (85, 151952), (136, 94970), (170, 75976), (272, 47485), (340, 37988), (680, 18994), (1360, 9497)]