15506840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2789}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 35154000

約数和(自身を除く): 19647160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 2789, 5560, 5578, 11156, 13945, 22312, 27890, 55780, 111560, 387671, 775342, 1550684, 1938355, 3101368, 3876710, 7753420, 15506840]

約数ペア:

[(1, 15506840), (2, 7753420), (4, 3876710), (5, 3101368), (8, 1938355), (10, 1550684), (20, 775342), (40, 387671), (139, 111560), (278, 55780), (556, 27890), (695, 22312), (1112, 13945), (1390, 11156), (2780, 5578), (2789, 5560)]