18927860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{383}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 45674496

約数和(自身を除く): 26746636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 353, 383, 706, 766, 1412, 1532, 1765, 1915, 2471, 2681, 3530, 3830, 4942, 5362, 7060, 7660, 9884, 10724, 12355, 13405, 24710, 26810, 49420, 53620, 135199, 270398, 540796, 675995, 946393, 1351990, 1892786, 2703980, 3785572, 4731965, 9463930, 18927860]

約数ペア:

[(1, 18927860), (2, 9463930), (4, 4731965), (5, 3785572), (7, 2703980), (10, 1892786), (14, 1351990), (20, 946393), (28, 675995), (35, 540796), (70, 270398), (140, 135199), (353, 53620), (383, 49420), (706, 26810), (766, 24710), (1412, 13405), (1532, 12355), (1765, 10724), (1915, 9884), (2471, 7660), (2681, 7060), (3530, 5362), (3830, 4942)]