20105729515

素因数分解:

$5^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{823}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 25710144768

約数和(自身を除く): 5604415253

約数列:

[1, 5, 37, 43, 83, 185, 215, 415, 823, 1369, 1591, 3071, 3569, 4115, 6845, 7955, 15355, 17845, 30451, 35389, 58867, 68309, 113627, 132053, 152255, 176945, 294335, 341545, 568135, 660265, 1126687, 1309393, 2527433, 2937287, 4885961, 5633435, 6546965, 12637165, 14686435, 24429805, 48447541, 93515021, 108679619, 242237705, 467575105, 543398095, 4021145903, 20105729515]

約数ペア:

[(1, 20105729515), (5, 4021145903), (37, 543398095), (43, 467575105), (83, 242237705), (185, 108679619), (215, 93515021), (415, 48447541), (823, 24429805), (1369, 14686435), (1591, 12637165), (3071, 6546965), (3569, 5633435), (4115, 4885961), (6845, 2937287), (7955, 2527433), (15355, 1309393), (17845, 1126687), (30451, 660265), (35389, 568135), (58867, 341545), (68309, 294335), (113627, 176945), (132053, 152255)]