20188928

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{4639}}^1$

素因数の和:4672

約数の個数: 36

約数和(自身を含む): 42678720

約数和(自身を除く): 22489792

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 128, 136, 256, 272, 544, 1088, 2176, 4352, 4639, 9278, 18556, 37112, 74224, 78863, 148448, 157726, 296896, 315452, 593792, 630904, 1187584, 1261808, 2523616, 5047232, 10094464, 20188928]

約数ペア:

[(1, 20188928), (2, 10094464), (4, 5047232), (8, 2523616), (16, 1261808), (17, 1187584), (32, 630904), (34, 593792), (64, 315452), (68, 296896), (128, 157726), (136, 148448), (256, 78863), (272, 74224), (544, 37112), (1088, 18556), (2176, 9278), (4352, 4639)]