28409128

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{719}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 58320000

約数和(自身を除く): 29910872

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 449, 719, 898, 1438, 1796, 2876, 3592, 4939, 5752, 7909, 9878, 15818, 19756, 31636, 39512, 63272, 322831, 645662, 1291324, 2582648, 3551141, 7102282, 14204564, 28409128]

約数ペア:

[(1, 28409128), (2, 14204564), (4, 7102282), (8, 3551141), (11, 2582648), (22, 1291324), (44, 645662), (88, 322831), (449, 63272), (719, 39512), (898, 31636), (1438, 19756), (1796, 15818), (2876, 9878), (3592, 7909), (4939, 5752)]