12619520

素因数分解:

$2^8\times 5^1\times {\mathrm{9859}}^1$

素因数の和:9880

約数の個数: 36

約数和(自身を含む): 30230760

約数和(自身を除く): 17611240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 9859, 19718, 39436, 49295, 78872, 98590, 157744, 197180, 315488, 394360, 630976, 788720, 1261952, 1577440, 2523904, 3154880, 6309760, 12619520]

約数ペア:

[(1, 12619520), (2, 6309760), (4, 3154880), (5, 2523904), (8, 1577440), (10, 1261952), (16, 788720), (20, 630976), (32, 394360), (40, 315488), (64, 197180), (80, 157744), (128, 98590), (160, 78872), (256, 49295), (320, 39436), (640, 19718), (1280, 9859)]