66645664

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 136321920

約数和(自身を除く): 69676256

約数列:

[1, 2, 4, 8, 16, 32, 41, 79, 82, 158, 164, 316, 328, 632, 643, 656, 1264, 1286, 1312, 2528, 2572, 3239, 5144, 6478, 10288, 12956, 20576, 25912, 26363, 50797, 51824, 52726, 101594, 103648, 105452, 203188, 210904, 406376, 421808, 812752, 843616, 1625504, 2082677, 4165354, 8330708, 16661416, 33322832, 66645664]

約数ペア:

[(1, 66645664), (2, 33322832), (4, 16661416), (8, 8330708), (16, 4165354), (32, 2082677), (41, 1625504), (79, 843616), (82, 812752), (158, 421808), (164, 406376), (316, 210904), (328, 203188), (632, 105452), (643, 103648), (656, 101594), (1264, 52726), (1286, 51824), (1312, 50797), (2528, 26363), (2572, 25912), (3239, 20576), (5144, 12956), (6478, 10288)]