81647872

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:363

約数の個数: 72

約数和(自身を含む): 175608216

約数和(自身を除く): 93960344

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 73, 128, 136, 146, 256, 257, 272, 292, 514, 544, 584, 1028, 1088, 1168, 1241, 2056, 2176, 2336, 2482, 4112, 4352, 4369, 4672, 4964, 8224, 8738, 9344, 9928, 16448, 17476, 18688, 18761, 19856, 32896, 34952, 37522, 39712, 65792, 69904, 75044, 79424, 139808, 150088, 158848, 279616, 300176, 317696, 318937, 559232, 600352, 637874, 1118464, 1200704, 1275748, 2401408, 2551496, 4802816, 5102992, 10205984, 20411968, 40823936, 81647872]

約数ペア:

[(1, 81647872), (2, 40823936), (4, 20411968), (8, 10205984), (16, 5102992), (17, 4802816), (32, 2551496), (34, 2401408), (64, 1275748), (68, 1200704), (73, 1118464), (128, 637874), (136, 600352), (146, 559232), (256, 318937), (257, 317696), (272, 300176), (292, 279616), (514, 158848), (544, 150088), (584, 139808), (1028, 79424), (1088, 75044), (1168, 69904), (1241, 65792), (2056, 39712), (2176, 37522), (2336, 34952), (2482, 32896), (4112, 19856), (4352, 18761), (4369, 18688), (4672, 17476), (4964, 16448), (8224, 9928), (8738, 9344)]