20408056

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{28663}}^1$

素因数の和:28758

約数の個数: 16

約数和(自身を含む): 38696400

約数和(自身を除く): 18288344

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 28663, 57326, 114652, 229304, 2551007, 5102014, 10204028, 20408056]

約数ペア:

[(1, 20408056), (2, 10204028), (4, 5102014), (8, 2551007), (89, 229304), (178, 114652), (356, 57326), (712, 28663)]