20515456

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12329}}^1$

素因数の和:12356

約数の個数: 32

約数和(自身を含む): 44018100

約数和(自身を除く): 23502644

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12329, 24658, 49316, 98632, 160277, 197264, 320554, 394528, 641108, 789056, 1282216, 1578112, 2564432, 5128864, 10257728, 20515456]

約数ペア:

[(1, 20515456), (2, 10257728), (4, 5128864), (8, 2564432), (13, 1578112), (16, 1282216), (26, 789056), (32, 641108), (52, 394528), (64, 320554), (104, 197264), (128, 160277), (208, 98632), (416, 49316), (832, 24658), (1664, 12329)]