20380048

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{7537}}^1$

素因数の和:7571

約数の個数: 30

約数和(自身を含む): 42763074

約数和(自身を除く): 22383026

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 7537, 15074, 30148, 60296, 97981, 120592, 195962, 391924, 783848, 1273753, 1567696, 2547506, 5095012, 10190024, 20380048]

約数ペア:

[(1, 20380048), (2, 10190024), (4, 5095012), (8, 2547506), (13, 1567696), (16, 1273753), (26, 783848), (52, 391924), (104, 195962), (169, 120592), (208, 97981), (338, 60296), (676, 30148), (1352, 15074), (2704, 7537)]