20678483968

素因数分解:

$2^{13}\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1365

約数の個数: 112

約数和(自身を含む): 43251120000

約数和(自身を除く): 22572636032

約数列:

[1, 2, 4, 8, 16, 32, 43, 47, 64, 86, 94, 128, 172, 188, 256, 344, 376, 512, 688, 752, 1024, 1249, 1376, 1504, 2021, 2048, 2498, 2752, 3008, 4042, 4096, 4996, 5504, 6016, 8084, 8192, 9992, 11008, 12032, 16168, 19984, 22016, 24064, 32336, 39968, 44032, 48128, 53707, 58703, 64672, 79936, 88064, 96256, 107414, 117406, 129344, 159872, 176128, 192512, 214828, 234812, 258688, 319744, 352256, 385024, 429656, 469624, 517376, 639488, 859312, 939248, 1034752, 1278976, 1718624, 1878496, 2069504, 2524229, 2557952, 3437248, 3756992, 4139008, 5048458, 5115904, 6874496, 7513984, 8278016, 10096916, 10231808, 13748992, 15027968, 16556032, 20193832, 27497984, 30055936, 40387664, 54995968, 60111872, 80775328, 109991936, 120223744, 161550656, 219983872, 240447488, 323101312, 439967744, 480894976, 646202624, 1292405248, 2584810496, 5169620992, 10339241984, 20678483968]

約数ペア:

[(1, 20678483968), (2, 10339241984), (4, 5169620992), (8, 2584810496), (16, 1292405248), (32, 646202624), (43, 480894976), (47, 439967744), (64, 323101312), (86, 240447488), (94, 219983872), (128, 161550656), (172, 120223744), (188, 109991936), (256, 80775328), (344, 60111872), (376, 54995968), (512, 40387664), (688, 30055936), (752, 27497984), (1024, 20193832), (1249, 16556032), (1376, 15027968), (1504, 13748992), (2021, 10231808), (2048, 10096916), (2498, 8278016), (2752, 7513984), (3008, 6874496), (4042, 5115904), (4096, 5048458), (4996, 4139008), (5504, 3756992), (6016, 3437248), (8084, 2557952), (8192, 2524229), (9992, 2069504), (11008, 1878496), (12032, 1718624), (16168, 1278976), (19984, 1034752), (22016, 939248), (24064, 859312), (32336, 639488), (39968, 517376), (44032, 469624), (48128, 429656), (53707, 385024), (58703, 352256), (64672, 319744), (79936, 258688), (88064, 234812), (96256, 214828), (107414, 192512), (117406, 176128), (129344, 159872)]