20411968

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 56

約数和(自身を含む): 43644312

約数和(自身を除く): 23232344

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 73, 136, 146, 257, 272, 292, 514, 544, 584, 1028, 1088, 1168, 1241, 2056, 2336, 2482, 4112, 4369, 4672, 4964, 8224, 8738, 9928, 16448, 17476, 18761, 19856, 34952, 37522, 39712, 69904, 75044, 79424, 139808, 150088, 279616, 300176, 318937, 600352, 637874, 1200704, 1275748, 2551496, 5102992, 10205984, 20411968]

約数ペア:

[(1, 20411968), (2, 10205984), (4, 5102992), (8, 2551496), (16, 1275748), (17, 1200704), (32, 637874), (34, 600352), (64, 318937), (68, 300176), (73, 279616), (136, 150088), (146, 139808), (257, 79424), (272, 75044), (292, 69904), (514, 39712), (544, 37522), (584, 34952), (1028, 19856), (1088, 18761), (1168, 17476), (1241, 16448), (2056, 9928), (2336, 8738), (2482, 8224), (4112, 4964), (4369, 4672)]