81935728

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23599}}^1$

素因数の和:23645

約数の個数: 40

約数和(自身を含む): 187289600

約数和(自身を除く): 105353872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 23599, 47198, 94396, 165193, 188792, 330386, 377584, 660772, 731569, 1321544, 1463138, 2643088, 2926276, 5120983, 5852552, 10241966, 11705104, 20483932, 40967864, 81935728]

約数ペア:

[(1, 81935728), (2, 40967864), (4, 20483932), (7, 11705104), (8, 10241966), (14, 5852552), (16, 5120983), (28, 2926276), (31, 2643088), (56, 1463138), (62, 1321544), (112, 731569), (124, 660772), (217, 377584), (248, 330386), (434, 188792), (496, 165193), (868, 94396), (1736, 47198), (3472, 23599)]