20403968

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6131}}^1$

素因数の和:6160

約数の個数: 36

約数和(自身を含む): 43868328

約数和(自身を除く): 23464360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6131, 12262, 24524, 49048, 79703, 98096, 159406, 196192, 318812, 392384, 637624, 784768, 1275248, 1569536, 2550496, 5100992, 10201984, 20403968]

約数ペア:

[(1, 20403968), (2, 10201984), (4, 5100992), (8, 2550496), (13, 1569536), (16, 1275248), (26, 784768), (32, 637624), (52, 392384), (64, 318812), (104, 196192), (128, 159406), (208, 98096), (256, 79703), (416, 49048), (832, 24524), (1664, 12262), (3328, 6131)]