20516556032

素因数分解:

$2^8\times 7^1\times {\mathrm{151}}^1\times {\mathrm{75821}}^1$

素因数の和:75995

約数の個数: 72

約数和(自身を含む): 47113971072

約数和(自身を除く): 26597415040

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 151, 224, 256, 302, 448, 604, 896, 1057, 1208, 1792, 2114, 2416, 4228, 4832, 8456, 9664, 16912, 19328, 33824, 38656, 67648, 75821, 135296, 151642, 270592, 303284, 530747, 606568, 1061494, 1213136, 2122988, 2426272, 4245976, 4852544, 8491952, 9705088, 11448971, 16983904, 19410176, 22897942, 33967808, 45795884, 67935616, 80142797, 91591768, 135871232, 160285594, 183183536, 320571188, 366367072, 641142376, 732734144, 1282284752, 1465468288, 2564569504, 2930936576, 5129139008, 10258278016, 20516556032]

約数ペア:

[(1, 20516556032), (2, 10258278016), (4, 5129139008), (7, 2930936576), (8, 2564569504), (14, 1465468288), (16, 1282284752), (28, 732734144), (32, 641142376), (56, 366367072), (64, 320571188), (112, 183183536), (128, 160285594), (151, 135871232), (224, 91591768), (256, 80142797), (302, 67935616), (448, 45795884), (604, 33967808), (896, 22897942), (1057, 19410176), (1208, 16983904), (1792, 11448971), (2114, 9705088), (2416, 8491952), (4228, 4852544), (4832, 4245976), (8456, 2426272), (9664, 2122988), (16912, 1213136), (19328, 1061494), (33824, 606568), (38656, 530747), (67648, 303284), (75821, 270592), (135296, 151642)]