31538380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19961}}^1$

素因数の和:20049

約数の個数: 24

約数和(自身を含む): 67072320

約数和(自身を除く): 35533940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 19961, 39922, 79844, 99805, 199610, 399220, 1576919, 3153838, 6307676, 7884595, 15769190, 31538380]

約数ペア:

[(1, 31538380), (2, 15769190), (4, 7884595), (5, 6307676), (10, 3153838), (20, 1576919), (79, 399220), (158, 199610), (316, 99805), (395, 79844), (790, 39922), (1580, 19961)]