18619280

素因数分解:

$2^4\times 5^1\times {\mathrm{232741}}^1$

素因数の和:232754

約数の個数: 20

約数和(自身を含む): 43290012

約数和(自身を除く): 24670732

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 232741, 465482, 930964, 1163705, 1861928, 2327410, 3723856, 4654820, 9309640, 18619280]

約数ペア:

[(1, 18619280), (2, 9309640), (4, 4654820), (5, 3723856), (8, 2327410), (10, 1861928), (16, 1163705), (20, 930964), (40, 465482), (80, 232741)]