20868744080

素因数分解:

$2^4\times 5^1\times {\mathrm{260859301}}^1$

素因数の和:260859314

約数の個数: 20

約数和(自身を含む): 48519830172

約数和(自身を除く): 27651086092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260859301, 521718602, 1043437204, 1304296505, 2086874408, 2608593010, 4173748816, 5217186020, 10434372040, 20868744080]

約数ペア:

[(1, 20868744080), (2, 10434372040), (4, 5217186020), (5, 4173748816), (8, 2608593010), (10, 2086874408), (16, 1304296505), (20, 1043437204), (40, 521718602), (80, 260859301)]