20749511776

素因数分解:

$2^5\times 7^2\times {\mathrm{1549}}^1\times {\mathrm{8543}}^1$

素因数の和:10116

約数の個数: 72

約数和(自身を含む): 47556331200

約数和(自身を除く): 26806819424

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1549, 1568, 3098, 6196, 8543, 10843, 12392, 17086, 21686, 24784, 34172, 43372, 49568, 59801, 68344, 75901, 86744, 119602, 136688, 151802, 173488, 239204, 273376, 303604, 346976, 418607, 478408, 607208, 837214, 956816, 1214416, 1674428, 1913632, 2428832, 3348856, 6697712, 13233107, 13395424, 26466214, 52932428, 92631749, 105864856, 185263498, 211729712, 370526996, 423459424, 648422243, 741053992, 1296844486, 1482107984, 2593688972, 2964215968, 5187377944, 10374755888, 20749511776]

約数ペア:

[(1, 20749511776), (2, 10374755888), (4, 5187377944), (7, 2964215968), (8, 2593688972), (14, 1482107984), (16, 1296844486), (28, 741053992), (32, 648422243), (49, 423459424), (56, 370526996), (98, 211729712), (112, 185263498), (196, 105864856), (224, 92631749), (392, 52932428), (784, 26466214), (1549, 13395424), (1568, 13233107), (3098, 6697712), (6196, 3348856), (8543, 2428832), (10843, 1913632), (12392, 1674428), (17086, 1214416), (21686, 956816), (24784, 837214), (34172, 607208), (43372, 478408), (49568, 418607), (59801, 346976), (68344, 303604), (75901, 273376), (86744, 239204), (119602, 173488), (136688, 151802)]