28465420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{433}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 63433440

約数和(自身を除く): 34968020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 346, 380, 433, 692, 865, 866, 1730, 1732, 2165, 3287, 3460, 4330, 6574, 8227, 8660, 13148, 16435, 16454, 32870, 32908, 41135, 65740, 74909, 82270, 149818, 164540, 299636, 374545, 749090, 1423271, 1498180, 2846542, 5693084, 7116355, 14232710, 28465420]

約数ペア:

[(1, 28465420), (2, 14232710), (4, 7116355), (5, 5693084), (10, 2846542), (19, 1498180), (20, 1423271), (38, 749090), (76, 374545), (95, 299636), (173, 164540), (190, 149818), (346, 82270), (380, 74909), (433, 65740), (692, 41135), (865, 32908), (866, 32870), (1730, 16454), (1732, 16435), (2165, 13148), (3287, 8660), (3460, 8227), (4330, 6574)]