19295870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 20004034

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 431, 605, 814, 862, 1210, 2035, 2155, 4070, 4310, 4477, 4741, 8954, 9482, 15947, 22385, 23705, 31894, 44770, 47410, 52151, 79735, 104302, 159470, 175417, 260755, 350834, 521510, 877085, 1754170, 1929587, 3859174, 9647935, 19295870]

約数ペア:

[(1, 19295870), (2, 9647935), (5, 3859174), (10, 1929587), (11, 1754170), (22, 877085), (37, 521510), (55, 350834), (74, 260755), (110, 175417), (121, 159470), (185, 104302), (242, 79735), (370, 52151), (407, 47410), (431, 44770), (605, 31894), (814, 23705), (862, 22385), (1210, 15947), (2035, 9482), (2155, 8954), (4070, 4741), (4310, 4477)]