1678460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 4247040

約数和(自身を除く): 2568580

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 631, 665, 1262, 1330, 2524, 2660, 3155, 4417, 6310, 8834, 11989, 12620, 17668, 22085, 23978, 44170, 47956, 59945, 83923, 88340, 119890, 167846, 239780, 335692, 419615, 839230, 1678460]

約数ペア:

[(1, 1678460), (2, 839230), (4, 419615), (5, 335692), (7, 239780), (10, 167846), (14, 119890), (19, 88340), (20, 83923), (28, 59945), (35, 47956), (38, 44170), (70, 23978), (76, 22085), (95, 17668), (133, 12620), (140, 11989), (190, 8834), (266, 6310), (380, 4417), (532, 3155), (631, 2660), (665, 2524), (1262, 1330)]