19964420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2417}}^1$

素因数の和:2492

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 28782460

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, 2417, 4130, 4834, 8260, 9668, 12085, 16919, 24170, 33838, 48340, 67676, 84595, 142603, 169190, 285206, 338380, 570412, 713015, 998221, 1426030, 1996442, 2852060, 3992884, 4991105, 9982210, 19964420]

約数ペア:

[(1, 19964420), (2, 9982210), (4, 4991105), (5, 3992884), (7, 2852060), (10, 1996442), (14, 1426030), (20, 998221), (28, 713015), (35, 570412), (59, 338380), (70, 285206), (118, 169190), (140, 142603), (236, 84595), (295, 67676), (413, 48340), (590, 33838), (826, 24170), (1180, 16919), (1652, 12085), (2065, 9668), (2417, 8260), (4130, 4834)]