20165118208

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{63473}}^1$

素因数の和:63579

約数の個数: 72

約数和(自身を含む): 43203705048

約数和(自身を除く): 23038586840

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 73, 128, 136, 146, 256, 272, 292, 544, 584, 1088, 1168, 1241, 2176, 2336, 2482, 4352, 4672, 4964, 9344, 9928, 18688, 19856, 39712, 63473, 79424, 126946, 158848, 253892, 317696, 507784, 1015568, 1079041, 2031136, 2158082, 4062272, 4316164, 4633529, 8124544, 8632328, 9267058, 16249088, 17264656, 18534116, 34529312, 37068232, 69058624, 74136464, 78769993, 138117248, 148272928, 157539986, 276234496, 296545856, 315079972, 593091712, 630159944, 1186183424, 1260319888, 2520639776, 5041279552, 10082559104, 20165118208]

約数ペア:

[(1, 20165118208), (2, 10082559104), (4, 5041279552), (8, 2520639776), (16, 1260319888), (17, 1186183424), (32, 630159944), (34, 593091712), (64, 315079972), (68, 296545856), (73, 276234496), (128, 157539986), (136, 148272928), (146, 138117248), (256, 78769993), (272, 74136464), (292, 69058624), (544, 37068232), (584, 34529312), (1088, 18534116), (1168, 17264656), (1241, 16249088), (2176, 9267058), (2336, 8632328), (2482, 8124544), (4352, 4633529), (4672, 4316164), (4964, 4062272), (9344, 2158082), (9928, 2031136), (18688, 1079041), (19856, 1015568), (39712, 507784), (63473, 317696), (79424, 253892), (126946, 158848)]