80731420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7489}}^1$

素因数の和:7523

約数の個数: 72

約数和(自身を含む): 215172720

約数和(自身を除く): 134441300

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7489, 10780, 14978, 29956, 37445, 52423, 74890, 82379, 104846, 149780, 164758, 209692, 262115, 329516, 366961, 411895, 524230, 576653, 733922, 823790, 1048460, 1153306, 1467844, 1647580, 1834805, 2306612, 2883265, 3669610, 4036571, 5766530, 7339220, 8073142, 11533060, 16146284, 20182855, 40365710, 80731420]

約数ペア:

[(1, 80731420), (2, 40365710), (4, 20182855), (5, 16146284), (7, 11533060), (10, 8073142), (11, 7339220), (14, 5766530), (20, 4036571), (22, 3669610), (28, 2883265), (35, 2306612), (44, 1834805), (49, 1647580), (55, 1467844), (70, 1153306), (77, 1048460), (98, 823790), (110, 733922), (140, 576653), (154, 524230), (196, 411895), (220, 366961), (245, 329516), (308, 262115), (385, 209692), (490, 164758), (539, 149780), (770, 104846), (980, 82379), (1078, 74890), (1540, 52423), (2156, 37445), (2695, 29956), (5390, 14978), (7489, 10780)]