7759780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 19071360

約数和(自身を除く): 11311580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1289, 1505, 2578, 3010, 5156, 6020, 6445, 9023, 12890, 18046, 25780, 36092, 45115, 55427, 90230, 110854, 180460, 221708, 277135, 387989, 554270, 775978, 1108540, 1551956, 1939945, 3879890, 7759780]

約数ペア:

[(1, 7759780), (2, 3879890), (4, 1939945), (5, 1551956), (7, 1108540), (10, 775978), (14, 554270), (20, 387989), (28, 277135), (35, 221708), (43, 180460), (70, 110854), (86, 90230), (140, 55427), (172, 45115), (215, 36092), (301, 25780), (430, 18046), (602, 12890), (860, 9023), (1204, 6445), (1289, 6020), (1505, 5156), (2578, 3010)]