90217280

素因数分解:

$2^6\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1097}}^1$

素因数の和:1371

約数の個数: 56

約数和(自身を含む): 215862408

約数和(自身を除く): 125645128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 257, 320, 514, 1028, 1097, 1285, 2056, 2194, 2570, 4112, 4388, 5140, 5485, 8224, 8776, 10280, 10970, 16448, 17552, 20560, 21940, 35104, 41120, 43880, 70208, 82240, 87760, 175520, 281929, 351040, 563858, 1127716, 1409645, 2255432, 2819290, 4510864, 5638580, 9021728, 11277160, 18043456, 22554320, 45108640, 90217280]

約数ペア:

[(1, 90217280), (2, 45108640), (4, 22554320), (5, 18043456), (8, 11277160), (10, 9021728), (16, 5638580), (20, 4510864), (32, 2819290), (40, 2255432), (64, 1409645), (80, 1127716), (160, 563858), (257, 351040), (320, 281929), (514, 175520), (1028, 87760), (1097, 82240), (1285, 70208), (2056, 43880), (2194, 41120), (2570, 35104), (4112, 21940), (4388, 20560), (5140, 17552), (5485, 16448), (8224, 10970), (8776, 10280)]