20120576

素因数分解:

$2^{10}\times 7^2\times {\mathrm{401}}^1$

素因数の和:435

約数の個数: 66

約数和(自身を含む): 46904958

約数和(自身を除く): 26784382

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 401, 448, 512, 784, 802, 896, 1024, 1568, 1604, 1792, 2807, 3136, 3208, 3584, 5614, 6272, 6416, 7168, 11228, 12544, 12832, 19649, 22456, 25088, 25664, 39298, 44912, 50176, 51328, 78596, 89824, 102656, 157192, 179648, 205312, 314384, 359296, 410624, 628768, 718592, 1257536, 1437184, 2515072, 2874368, 5030144, 10060288, 20120576]

約数ペア:

[(1, 20120576), (2, 10060288), (4, 5030144), (7, 2874368), (8, 2515072), (14, 1437184), (16, 1257536), (28, 718592), (32, 628768), (49, 410624), (56, 359296), (64, 314384), (98, 205312), (112, 179648), (128, 157192), (196, 102656), (224, 89824), (256, 78596), (392, 51328), (401, 50176), (448, 44912), (512, 39298), (784, 25664), (802, 25088), (896, 22456), (1024, 19649), (1568, 12832), (1604, 12544), (1792, 11228), (2807, 7168), (3136, 6416), (3208, 6272), (3584, 5614)]