9918380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{607}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 22471680

約数和(自身を除く): 12553300

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 607, 817, 860, 1214, 1634, 2428, 3035, 3268, 4085, 6070, 8170, 11533, 12140, 16340, 23066, 26101, 46132, 52202, 57665, 104404, 115330, 130505, 230660, 261010, 495919, 522020, 991838, 1983676, 2479595, 4959190, 9918380]

約数ペア:

[(1, 9918380), (2, 4959190), (4, 2479595), (5, 1983676), (10, 991838), (19, 522020), (20, 495919), (38, 261010), (43, 230660), (76, 130505), (86, 115330), (95, 104404), (172, 57665), (190, 52202), (215, 46132), (380, 26101), (430, 23066), (607, 16340), (817, 12140), (860, 11533), (1214, 8170), (1634, 6070), (2428, 4085), (3035, 3268)]