20191696

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1297}}^1$

素因数の和:1451

約数の個数: 40

約数和(自身を含む): 45066560

約数和(自身を除く): 24874864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1297, 1946, 2224, 2594, 3892, 5188, 7784, 9079, 10376, 15568, 18158, 20752, 36316, 72632, 145264, 180283, 360566, 721132, 1261981, 1442264, 2523962, 2884528, 5047924, 10095848, 20191696]

約数ペア:

[(1, 20191696), (2, 10095848), (4, 5047924), (7, 2884528), (8, 2523962), (14, 1442264), (16, 1261981), (28, 721132), (56, 360566), (112, 180283), (139, 145264), (278, 72632), (556, 36316), (973, 20752), (1112, 18158), (1297, 15568), (1946, 10376), (2224, 9079), (2594, 7784), (3892, 5188)]