19869820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52289}}^1$

素因数の和:52317

約数の個数: 24

約数和(自身を含む): 43923600

約数和(自身を除く): 24053780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 52289, 104578, 209156, 261445, 522890, 993491, 1045780, 1986982, 3973964, 4967455, 9934910, 19869820]

約数ペア:

[(1, 19869820), (2, 9934910), (4, 4967455), (5, 3973964), (10, 1986982), (19, 1045780), (20, 993491), (38, 522890), (76, 261445), (95, 209156), (190, 104578), (380, 52289)]