66908416

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{8431}}^1$

素因数の和:8478

約数の個数: 36

約数和(自身を含む): 137880064

約数和(自身を除く): 70971648

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 8431, 16862, 33724, 67448, 134896, 261361, 269792, 522722, 539584, 1045444, 1079168, 2090888, 2158336, 4181776, 8363552, 16727104, 33454208, 66908416]

約数ペア:

[(1, 66908416), (2, 33454208), (4, 16727104), (8, 8363552), (16, 4181776), (31, 2158336), (32, 2090888), (62, 1079168), (64, 1045444), (124, 539584), (128, 522722), (248, 269792), (256, 261361), (496, 134896), (992, 67448), (1984, 33724), (3968, 16862), (7936, 8431)]