12191720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{17929}}^1$

素因数の和:17957

約数の個数: 32

約数和(自身を含む): 29046600

約数和(自身を除く): 16854880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 17929, 35858, 71716, 89645, 143432, 179290, 304793, 358580, 609586, 717160, 1219172, 1523965, 2438344, 3047930, 6095860, 12191720]

約数ペア:

[(1, 12191720), (2, 6095860), (4, 3047930), (5, 2438344), (8, 1523965), (10, 1219172), (17, 717160), (20, 609586), (34, 358580), (40, 304793), (68, 179290), (85, 143432), (136, 89645), (170, 71716), (340, 35858), (680, 17929)]