20688047355

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{421}}^1\times {\mathrm{2393}}^1$

素因数の和:2896

約数の個数: 48

約数和(自身を含む): 34114729824

約数和(自身を除く): 13426682469

約数列:

[1, 3, 5, 15, 37, 111, 185, 421, 555, 1263, 1369, 2105, 2393, 4107, 6315, 6845, 7179, 11965, 15577, 20535, 35895, 46731, 77885, 88541, 233655, 265623, 442705, 576349, 1007453, 1328115, 1729047, 2881745, 3022359, 3276017, 5037265, 8645235, 9828051, 15111795, 16380085, 37275761, 49140255, 111827283, 186378805, 559136415, 1379203157, 4137609471, 6896015785, 20688047355]

約数ペア:

[(1, 20688047355), (3, 6896015785), (5, 4137609471), (15, 1379203157), (37, 559136415), (111, 186378805), (185, 111827283), (421, 49140255), (555, 37275761), (1263, 16380085), (1369, 15111795), (2105, 9828051), (2393, 8645235), (4107, 5037265), (6315, 3276017), (6845, 3022359), (7179, 2881745), (11965, 1729047), (15577, 1328115), (20535, 1007453), (35895, 576349), (46731, 442705), (77885, 265623), (88541, 233655)]