12207440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{21799}}^1$

素因数の和:21819

約数の個数: 40

約数和(自身を含む): 32438400

約数和(自身を除く): 20230960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 21799, 43598, 87196, 108995, 152593, 174392, 217990, 305186, 348784, 435980, 610372, 762965, 871960, 1220744, 1525930, 1743920, 2441488, 3051860, 6103720, 12207440]

約数ペア:

[(1, 12207440), (2, 6103720), (4, 3051860), (5, 2441488), (7, 1743920), (8, 1525930), (10, 1220744), (14, 871960), (16, 762965), (20, 610372), (28, 435980), (35, 348784), (40, 305186), (56, 217990), (70, 174392), (80, 152593), (112, 108995), (140, 87196), (280, 43598), (560, 21799)]