28209408

素因数分解:

$2^8\times 3^1\times {\mathrm{23}}^1\times {\mathrm{1597}}^1$

素因数の和:1639

約数の個数: 72

約数和(自身を含む): 78391488

約数和(自身を除く): 50182080

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 256, 276, 368, 384, 552, 736, 768, 1104, 1472, 1597, 2208, 2944, 3194, 4416, 4791, 5888, 6388, 8832, 9582, 12776, 17664, 19164, 25552, 36731, 38328, 51104, 73462, 76656, 102208, 110193, 146924, 153312, 204416, 220386, 293848, 306624, 408832, 440772, 587696, 613248, 881544, 1175392, 1226496, 1763088, 2350784, 3526176, 4701568, 7052352, 9403136, 14104704, 28209408]

約数ペア:

[(1, 28209408), (2, 14104704), (3, 9403136), (4, 7052352), (6, 4701568), (8, 3526176), (12, 2350784), (16, 1763088), (23, 1226496), (24, 1175392), (32, 881544), (46, 613248), (48, 587696), (64, 440772), (69, 408832), (92, 306624), (96, 293848), (128, 220386), (138, 204416), (184, 153312), (192, 146924), (256, 110193), (276, 102208), (368, 76656), (384, 73462), (552, 51104), (736, 38328), (768, 36731), (1104, 25552), (1472, 19164), (1597, 17664), (2208, 12776), (2944, 9582), (3194, 8832), (4416, 6388), (4791, 5888)]