20866703039

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{283}}^1\times {\mathrm{359}}^1$

素因数の和:760

約数の個数: 64

約数和(自身を含む): 26978273280

約数和(自身を除く): 6111570241

約数列:

[1, 7, 13, 37, 61, 91, 259, 283, 359, 427, 481, 793, 1981, 2257, 2513, 3367, 3679, 4667, 5551, 10471, 13283, 15799, 17263, 21899, 25753, 29341, 32669, 73297, 92981, 101597, 120841, 136123, 153293, 172679, 205387, 224419, 284687, 638731, 711179, 810263, 952861, 1208753, 1320761, 1570933, 1992809, 3759089, 4471117, 5671841, 6197417, 8303503, 9245327, 10533419, 26313623, 43381919, 48868157, 58124521, 73733933, 80566421, 229304429, 342077099, 563964947, 1605131003, 2980957577, 20866703039]

約数ペア:

[(1, 20866703039), (7, 2980957577), (13, 1605131003), (37, 563964947), (61, 342077099), (91, 229304429), (259, 80566421), (283, 73733933), (359, 58124521), (427, 48868157), (481, 43381919), (793, 26313623), (1981, 10533419), (2257, 9245327), (2513, 8303503), (3367, 6197417), (3679, 5671841), (4667, 4471117), (5551, 3759089), (10471, 1992809), (13283, 1570933), (15799, 1320761), (17263, 1208753), (21899, 952861), (25753, 810263), (29341, 711179), (32669, 638731), (73297, 284687), (92981, 224419), (101597, 205387), (120841, 172679), (136123, 153293)]