19920544

素因数分解:

$2^5\times 7^1\times {\mathrm{113}}^1\times {\mathrm{787}}^1$

素因数の和:917

約数の個数: 48

約数和(自身を含む): 45275328

約数和(自身を除く): 25354784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 113, 224, 226, 452, 787, 791, 904, 1574, 1582, 1808, 3148, 3164, 3616, 5509, 6296, 6328, 11018, 12592, 12656, 22036, 25184, 25312, 44072, 88144, 88931, 176288, 177862, 355724, 622517, 711448, 1245034, 1422896, 2490068, 2845792, 4980136, 9960272, 19920544]

約数ペア:

[(1, 19920544), (2, 9960272), (4, 4980136), (7, 2845792), (8, 2490068), (14, 1422896), (16, 1245034), (28, 711448), (32, 622517), (56, 355724), (112, 177862), (113, 176288), (224, 88931), (226, 88144), (452, 44072), (787, 25312), (791, 25184), (904, 22036), (1574, 12656), (1582, 12592), (1808, 11018), (3148, 6328), (3164, 6296), (3616, 5509)]