388680544

素因数分解:

$2^5\times 7^2\times {\mathrm{487}}^1\times {\mathrm{509}}^1$

素因数の和:1020

約数の個数: 72

約数和(自身を含む): 893728080

約数和(自身を除く): 505047536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 487, 509, 784, 974, 1018, 1568, 1948, 2036, 3409, 3563, 3896, 4072, 6818, 7126, 7792, 8144, 13636, 14252, 15584, 16288, 23863, 24941, 27272, 28504, 47726, 49882, 54544, 57008, 95452, 99764, 109088, 114016, 190904, 199528, 247883, 381808, 399056, 495766, 763616, 798112, 991532, 1735181, 1983064, 3470362, 3966128, 6940724, 7932256, 12146267, 13881448, 24292534, 27762896, 48585068, 55525792, 97170136, 194340272, 388680544]

約数ペア:

[(1, 388680544), (2, 194340272), (4, 97170136), (7, 55525792), (8, 48585068), (14, 27762896), (16, 24292534), (28, 13881448), (32, 12146267), (49, 7932256), (56, 6940724), (98, 3966128), (112, 3470362), (196, 1983064), (224, 1735181), (392, 991532), (487, 798112), (509, 763616), (784, 495766), (974, 399056), (1018, 381808), (1568, 247883), (1948, 199528), (2036, 190904), (3409, 114016), (3563, 109088), (3896, 99764), (4072, 95452), (6818, 57008), (7126, 54544), (7792, 49882), (8144, 47726), (13636, 28504), (14252, 27272), (15584, 24941), (16288, 23863)]