20377420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2467}}^1$

素因数の和:2542

約数の個数: 48

約数和(自身を含む): 49754880

約数和(自身を除く): 29377460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 2467, 4130, 4934, 8260, 9868, 12335, 17269, 24670, 34538, 49340, 69076, 86345, 145553, 172690, 291106, 345380, 582212, 727765, 1018871, 1455530, 2037742, 2911060, 4075484, 5094355, 10188710, 20377420]

約数ペア:

[(1, 20377420), (2, 10188710), (4, 5094355), (5, 4075484), (7, 2911060), (10, 2037742), (14, 1455530), (20, 1018871), (28, 727765), (35, 582212), (59, 345380), (70, 291106), (118, 172690), (140, 145553), (236, 86345), (295, 69076), (413, 49340), (590, 34538), (826, 24670), (1180, 17269), (1652, 12335), (2065, 9868), (2467, 8260), (4130, 4934)]