238152740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{487}}^1\times {\mathrm{499}}^1$

素因数の和:1009

約数の個数: 72

約数和(自身を含む): 584136000

約数和(自身を除く): 345983260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 487, 490, 499, 974, 980, 998, 1948, 1996, 2435, 2495, 3409, 3493, 4870, 4990, 6818, 6986, 9740, 9980, 13636, 13972, 17045, 17465, 23863, 24451, 34090, 34930, 47726, 48902, 68180, 69860, 95452, 97804, 119315, 122255, 238630, 243013, 244510, 477260, 486026, 489020, 972052, 1215065, 1701091, 2430130, 3402182, 4860260, 6804364, 8505455, 11907637, 17010910, 23815274, 34021820, 47630548, 59538185, 119076370, 238152740]

約数ペア:

[(1, 238152740), (2, 119076370), (4, 59538185), (5, 47630548), (7, 34021820), (10, 23815274), (14, 17010910), (20, 11907637), (28, 8505455), (35, 6804364), (49, 4860260), (70, 3402182), (98, 2430130), (140, 1701091), (196, 1215065), (245, 972052), (487, 489020), (490, 486026), (499, 477260), (974, 244510), (980, 243013), (998, 238630), (1948, 122255), (1996, 119315), (2435, 97804), (2495, 95452), (3409, 69860), (3493, 68180), (4870, 48902), (4990, 47726), (6818, 34930), (6986, 34090), (9740, 24451), (9980, 23863), (13636, 17465), (13972, 17045)]